They should have the same time, the update is supposed to be atomic, meaning that whatever how long it takes to perform, the action is supposed to occurs as if all was done at the same time.

If you're experiencing a different behaviour, it's time to change for another DBMS.

Use NSLog() like this:

NSLog(@"The code runs through here!");

Or like this - with placeholders:

float aFloat = 5.34245;
NSLog(@"This is my float: %f \n\nAnd here again: %.2f", aFloat, aFloat);

In NSLog() you can use it like + (id)stringWithFormat:(NSString *)format, ...

float aFloat = 5.34245;
NSString *aString = [NSString stringWithFormat:@"This is my float: %f \n\nAnd here again: %.2f", aFloat, aFloat];

You can add other placeholders, too:

float aFloat = 5.34245;
int aInteger = 3;
NSString *aString = @"A string";
NSLog(@"This is my float: %f \n\nAnd here is my integer: %i \n\nAnd finally my string: %@", aFloat, aInteger, aString);

What you're trying to do is to monitor the property of attribute in directive. You can watch the property of attribute changes using $observe() as follows:

angular.module('myApp').directive('conversation', function() {
  return {
    restrict: 'E',
    replace: true,
    compile: function(tElement, attr) {
      attr.$observe('typeId', function(data) {
            console.log("Updated data ", data);
      }, true);

    }
  };
});

Keep in mind that I used the 'compile' function in the directive here because you haven't mentioned if you have any models and whether this is performance sensitive.

If you have models, you need to change the 'compile' function to 'link' or use 'controller' and to monitor the property of a model changes, you should use $watch(), and take of the angular {{}} brackets from the property, example:

<conversation style="height:300px" type="convo" type-id="some_prop"></conversation>

And in the directive:

angular.module('myApp').directive('conversation', function() {
  return {
    scope: {
      typeId: '=',
    },
    link: function(scope, elm, attr) {

      scope.$watch('typeId', function(newValue, oldValue) {
          if (newValue !== oldValue) {
            // You actions here
            console.log("I got the new value! ", newValue);
          }
      }, true);

    }
  };
});

ROWS UNBOUNDED PRECEDING is no Teradata-specific syntax, it's Standard SQL. Together with the ORDER BY it defines the window on which the result is calculated.

Logically a Windowed Aggregate Function is newly calculated for each row within the PARTITION based on all ROWS between a starting row and an ending row.

Starting and ending rows might be fixed or relative to the current row based on the following keywords:

• CURRENT ROW, the current row
• UNBOUNDED PRECEDING, all rows before the current row -> fixed
• UNBOUNDED FOLLOWING, all rows after the current row -> fixed
• x PRECEDING, x rows before the current row -> relative
• y FOLLOWING, y rows after the current row -> relative

Possible kinds of calculation include:

• Both starting and ending row are fixed, the window consists of all rows of a partition, e.g. a Group Sum, i.e. aggregate plus detail rows
• One end is fixed, the other relative to current row, the number of rows increases or decreases, e.g. a Running Total, Remaining Sum
• Starting and ending row are relative to current row, the number of rows within a window is fixed, e.g. a Moving Average over n rows

So SUM(x) OVER (ORDER BY col ROWS UNBOUNDED PRECEDING) results in a Cumulative Sum or Running Total

11 -> 11
 2 -> 11 +  2                = 13
 3 -> 13 +  3 (or 11+2+3)    = 16
44 -> 16 + 44 (or 11+2+3+44) = 60

You need to make use of the begin and end method of the vector class, which return the iterator referring to the first and the last element respectively.

using namespace std;  

vector<string> myvector;  // a vector of stings.


// push some strings in the vector.
myvector.push_back("a");
myvector.push_back("b");
myvector.push_back("c");
myvector.push_back("d");


vector<string>::iterator it;  // declare an iterator to a vector of strings
int n = 3;  // nth element to be found.
int i = 0;  // counter.

// now start at from the beginning
// and keep iterating over the element till you find
// nth element...or reach the end of vector.
for(it = myvector.begin(); it != myvector.end(); it++,i++ )    {
    // found nth element..print and break.
    if(i == n) {
        cout<< *it << endl;  // prints d.
        break;
    }
}

// other easier ways of doing the same.
// using operator[]
cout<<myvector[n]<<endl;  // prints d.

// using the at method
cout << myvector.at(n) << endl;  // prints d.

No, and the fact that you want to seems like a bad idea. Do you really need a default constructor like this?

I came to this post by way of better understanding the inference of the infamous quote from Mac Lane's Category Theory For the Working Mathematician.

In describing what something is, it's often equally useful to describe what it's not.

The fact that Mac Lane uses the description to describe a Monad, one might imply that it describes something unique to monads. Bear with me. To develop a broader understanding of the statement, I believe it needs to be made clear that he is not describing something that is unique to monads; the statement equally describes Applicative and Arrows among others. For the same reason we can have two monoids on Int (Sum and Product), we can have several monoids on X in the category of endofunctors. But there is even more to the similarities.

Both Monad and Applicative meet the criteria:

• endo => any arrow, or morphism that starts and ends in the same place
• functor => any arrow, or morphism between two Categories

  (e.g., in day to day Tree a -> List b, but in Category Tree -> List)

• monoid => single object; i.e., a single type, but in this context, only in regards to the external layer; so, we can't have Tree -> List, only List -> List.

The statement uses "Category of..." This defines the scope of the statement. As an example, the Functor Category describes the scope of f * -> g *, i.e., Any functor -> Any functor, e.g., Tree * -> List * or Tree * -> Tree *.

What a Categorical statement does not specify describes where anything and everything is permitted.

In this case, inside the functors, * -> * aka a -> b is not specified which means Anything -> Anything including Anything else. As my imagination jumps to Int -> String, it also includes Integer -> Maybe Int, or even Maybe Double -> Either String Int where a :: Maybe Double; b :: Either String Int.

So the statement comes together as follows:

• functor scope :: f a -> g b (i.e., any parameterized type to any parameterized type)
• endo + functor :: f a -> f b (i.e., any one parameterized type to the same parameterized type) ... said differently,
• a monoid in the category of endofunctor

So, where is the power of this construct? To appreciate the full dynamics, I needed to see that the typical drawings of a monoid (single object with what looks like an identity arrow, :: single object -> single object), fails to illustrate that I'm permitted to use an arrow parameterized with any number of monoid values, from the one type object permitted in Monoid. The endo, ~ identity arrow definition of equivalence ignores the functor's type value and both the type and value of the most inner, "payload" layer. Thus, equivalence returns true in any situation where the functorial types match (e.g., Nothing -> Just * -> Nothing is equivalent to Just * -> Just * -> Just * because they are both Maybe -> Maybe -> Maybe).

Sidebar: ~ outside is conceptual, but is the left most symbol in f a. It also describes what "Haskell" reads-in first (big picture); so Type is "outside" in relation to a Type Value. The relationship between layers (a chain of references) in programming is not easy to relate in Category. The Category of Set is used to describe Types (Int, Strings, Maybe Int etc.) which includes the Category of Functor (parameterized Types). The reference chain: Functor Type, Functor values (elements of that Functor's set, e.g., Nothing, Just), and in turn, everything else each functor value points to. In Category the relationship is described differently, e.g., return :: a -> m a is considered a natural transformation from one Functor to another Functor, different from anything mentioned thus far.

Back to the main thread, all in all, for any defined tensor product and a neutral value, the statement ends up describing an amazingly powerful computational construct born from its paradoxical structure:

• on the outside it appears as a single object (e.g., :: List); static
• but inside, permits a lot of dynamics
  • any number of values of the same type (e.g., Empty | ~NonEmpty) as fodder to functions of any arity. The tensor product will reduce any number of inputs to a single value... for the external layer (~fold that says nothing about the payload)
  • infinite range of both the type and values for the inner most layer

In Haskell, clarifying the applicability of the statement is important. The power and versatility of this construct, has absolutely nothing to do with a monad per se. In other words, the construct does not rely on what makes a monad unique.

When trying to figure out whether to build code with a shared context to support computations that depend on each other, versus computations that can be run in parallel, this infamous statement, with as much as it describes, is not a contrast between the choice of Applicative, Arrows and Monads, but rather is a description of how much they are the same. For the decision at hand, the statement is moot.

This is often misunderstood. The statement goes on to describe join :: m (m a) -> m a as the tensor product for the monoidal endofunctor. However, it does not articulate how, in the context of this statement, (<*>) could also have also been chosen. It truly is a an example of six/half dozen. The logic for combining values are exactly alike; same input generates the same output from each (unlike the Sum and Product monoids for Int because they generate different results when combining Ints).

So, to recap: A monoid in the category of endofunctors describes:

   ~t :: m * -> m * -> m *
   and a neutral value for m *

(<*>) and (>>=) both provide simultaneous access to the two m values in order to compute the the single return value. The logic used to compute the return value is exactly the same. If it were not for the different shapes of the functions they parameterize (f :: a -> b versus k :: a -> m b) and the position of the parameter with the same return type of the computation (i.e., a -> b -> b versus b -> a -> b for each respectively), I suspect we could have parameterized the monoidal logic, the tensor product, for reuse in both definitions. As an exercise to make the point, try and implement ~t, and you end up with (<*>) and (>>=) depending on how you decide to define it forall a b.

If my last point is at minimum conceptually true, it then explains the precise, and only computational difference between Applicative and Monad: the functions they parameterize. In other words, the difference is external to the implementation of these type classes.

In conclusion, in my own experience, Mac Lane's infamous quote provided a great "goto" meme, a guidepost for me to reference while navigating my way through Category to better understand the idioms used in Haskell. It succeeds at capturing the scope of a powerful computing capacity made wonderfully accessible in Haskell.

However, there is irony in how I first misunderstood the statement's applicability outside of the monad, and what I hope conveyed here. Everything that it describes turns out to be what is similar between Applicative and Monads (and Arrows among others). What it doesn't say is precisely the small but useful distinction between them.

- E

To remove the frame of the chart

for spine in plt.gca().spines.values():
  spine.set_visible(False)

I hope this could work

Since there is no programmatic way to mimic minimal-ui, we have come up with a different workaround, using calc() and known iOS address bar height to our advantage:

The following demo page (also available on gist, more technical details there) will prompt user to scroll, which then triggers a soft-fullscreen (hide address bar/menu), where header and content fills the new viewport.

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Scroll Test</title>

    <style>
        html, body {
            height: 100%;
        }

        html {
            background-color: red;
        }

        body {
            background-color: blue;
            margin: 0;
        }

        div.header {
            width: 100%;
            height: 40px;
            background-color: green;
            overflow: hidden;
        }

        div.content {
            height: 100%;
            height: calc(100% - 40px);
            width: 100%;
            background-color: purple;
            overflow: hidden;
        }

        div.cover {
            position: absolute;
            top: 0;
            left: 0;
            z-index: 100;
            width: 100%;
            height: 100%;
            overflow: hidden;
            background-color: rgba(0, 0, 0, 0.5);
            color: #fff;
            display: none;
        }

        @media screen and (width: 320px) {
            html {
                height: calc(100% + 72px);
            }

            div.cover {
                display: block;
            }
        }
    </style>
    <script>
        var timeout;

        window.addEventListener('scroll', function(ev) {

            if (timeout) {
                clearTimeout(timeout);
            }

            timeout = setTimeout(function() {

                if (window.scrollY > 0) {
                    var cover = document.querySelector('div.cover');
                    cover.style.display = 'none';
                }

            }, 200);

        });
    </script>
</head>
<body>

    <div class="header">
        <p>header</p>
    </div>
    <div class="content">
        <p>content</p>
    </div>
    <div class="cover">
        <p>scroll to soft fullscreen</p>
    </div>

</body>
</html>

LOESS is a very good approach, as Dirk said.

Another option is using Bezier splines, which may in some cases work better than LOESS if you don't have many data points.

Here you'll find an example: http://rosettacode.org/wiki/Cubic_bezier_curves#R

# x, y: the x and y coordinates of the hull points
# n: the number of points in the curve.
bezierCurve <- function(x, y, n=10)
    {
    outx <- NULL
    outy <- NULL

    i <- 1
    for (t in seq(0, 1, length.out=n))
        {
        b <- bez(x, y, t)
        outx[i] <- b$x
        outy[i] <- b$y

        i <- i+1
        }

    return (list(x=outx, y=outy))
    }

bez <- function(x, y, t)
    {
    outx <- 0
    outy <- 0
    n <- length(x)-1
    for (i in 0:n)
        {
        outx <- outx + choose(n, i)*((1-t)^(n-i))*t^i*x[i+1]
        outy <- outy + choose(n, i)*((1-t)^(n-i))*t^i*y[i+1]
        }

    return (list(x=outx, y=outy))
    }

# Example usage
x <- c(4,6,4,5,6,7)
y <- 1:6
plot(x, y, "o", pch=20)
points(bezierCurve(x,y,20), type="l", col="red")

IMHO use of .select comes from people, who like me started learning VBA by necessity through recording macros and then modifying the code without realizing that .select and subsequent selection is just an unnecessary middle-men.

.select can be avoided, as many posted already, by directly working with the already existing objects, which allows various indirect referencing like calculating i and j in a complex way and then editing cell(i,j), etc.

Otherwise, there is nothing implicitly wrong with .select itself and you can find uses for this easily, e.g. I have a spreadsheet that I populate with date, activate macro that does some magic with it and exports it in an acceptable format on a separate sheet, which, however, requires some final manual (unpredictable) inputs into an adjacent cell. So here comes the moment for .select that saves me that additional mouse movement and click.

There is a product from http://www.shunra.com called VE Desktop which can be used to simulate varying network conditions. It allows you to tweak latencies, bandwidth and packetloss with a simple UI. Only caveat is, its not free. Hope this helps.

2 things FYI -

1. For now, they've added a few toggle classes. See what's available in the latest stable release - print toggles in responsive-utilities.less
2. New and improved solution coming in Bootstrap 3.0 - they're adding a separate print.less file. See separate print.less

The server you're trying to download from may be badly configured. Even if it works in your browser, it may not be including all the public certificates in the chain needed for a cache-empty client to verify.

I recommend checking the site in SSLlabs tool: https://www.ssllabs.com/ssltest/

Look for this error:

This server's certificate chain is incomplete.

And this:

Chain issues.........Incomplete

What's wrong with actually using ng-animate for ng-show as you mentioned?

<script src="lib/angulr.js"></script>
<script src="lib/angulr_animate.js"></script>
<script>
    var app=angular.module('ang_app', ['ngAnimate']);
    app.controller('ang_control01_main', function($scope) {

    });
</script>
<style>
    #myDiv {
        transition: .5s;
        background-color: lightblue;
        height: 100px;
    }
    #myDiv.ng-hide {
        height: 0;
    }
</style>
<body ng-app="ang_app" ng-controller="ang_control01_main">
    <input type="checkbox" ng-model="myCheck">
    <div id="myDiv" ng-show="myCheck"></div>
</body>

Using jQuery in 2016, to get click coordinates relative to the canvas, I do:

$(canvas).click(function(jqEvent) {
    var coords = {
        x: jqEvent.pageX - $(canvas).offset().left,
        y: jqEvent.pageY - $(canvas).offset().top
    };
});

This works since both canvas offset() and jqEvent.pageX/Y are relative to the document regardless of scroll position.

Note that if your canvas is scaled then these coordinates are not the same as canvas logical coordinates. To get those, you would also do:

var logicalCoords = {
    x: coords.x * (canvas.width / $(canvas).width()),
    y: coords.y * (canvas.height / $(canvas).height())
}

The print function in python adds itself \n

You could use

import sys
sys.stdout.write(a)

instead

check ur WebApiConfig and add this

GlobalConfiguration.Configuration.Formatters.XmlFormatter.SupportedMediaTypes.Clear();

You could consider using CSS clip: rect(top, right, bottom, left); to clip a fixed positioned element to a parent. See demo at http://jsfiddle.net/lmeurs/jf3t0fmf/.

Beware, use with care!

Though the clip style is widely supported, main disadvantages are that:

1. The parent's position cannot be static or relative (one can use an absolutely positioned parent inside a relatively positioned container);
2. The rect coordinates do not support percentages, though the auto value equals 100%, ie. clip: rect(auto, auto, auto, auto);;
3. Possibillities with child elements are limited in at least IE11 & Chrome34, ie. we cannot set the position of child elements to relative or absolute or use CSS3 transform like scale.

See http://tympanus.net/codrops/2013/01/16/understanding-the-css-clip-property/ for more info.

EDIT: Chrome seems to handle positioning of and CSS3 transforms on child elements a lot better when applying backface-visibility, so just to be sure we added:

-webkit-backface-visibility: hidden;
-moz-backface-visibility: hidden;
backface-visibility: hidden;

to the main child element.

Also note that it's not fully supported by older / mobile browsers or it might take some extra effort. See our implementation for the menu at bellafuchsia.com.

1. IE8 shows the menu well, but menu links are not clickable;
2. IE9 does not show the menu under the fold;
3. iOS Safari <5 does not show the menu well;
4. iOS Safari 5+ repaints the clipped content on scroll after scrolling;
5. FF (at least 13+), IE10+, Chrome and Chrome for Android seem to play nice.

EDIT 2014-11-02: Demo URL has been updated.

Pass props to direct children.

See all other answers

Pass shared, global data through the component tree via context

Context is designed to share data that can be considered “global” for a tree of React components, such as the current authenticated user, theme, or preferred language. ¹

Disclaimer: This is an updated answer, the previous one used the old context API

It is based on Consumer / Provide principle. First, create your context

const { Provider, Consumer } = React.createContext(defaultValue);

Then use via

<Provider value={/* some value */}>
  {children} /* potential consumers */
<Provider />

and

<Consumer>
  {value => /* render something based on the context value */}
</Consumer>

All Consumers that are descendants of a Provider will re-render whenever the Provider’s value prop changes. The propagation from Provider to its descendant Consumers is not subject to the shouldComponentUpdate method, so the Consumer is updated even when an ancestor component bails out of the update. ¹

Full example, semi-pseudo code.

import React from 'react';

const { Provider, Consumer } = React.createContext({ color: 'white' });

class App extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      value: { color: 'black' },
    };
  }

  render() {
    return (
      <Provider value={this.state.value}>
        <Toolbar />
      </Provider>
    );
  }
}

class Toolbar extends React.Component {
  render() {
    return ( 
      <div>
        <p> Consumer can be arbitrary levels deep </p>
        <Consumer> 
          {value => <p> The toolbar will be in color {value.color} </p>}
        </Consumer>
      </div>
    );
  }
}

¹ https://facebook.github.io/react/docs/context.html

Here's a different approach using CSS instead of JavaScript/AngularJS.

CSS:

.emptymsg {
  display: list-item;
}

li + .emptymsg {
  display: none;
}

Markup:

<ul>
    <li ng-repeat="item in filteredItems"> ... </li>
    <li class="emptymsg">No items found</li>
</ul>

If the list is empty, <li ng-repeat="item in filteredItems">, etc. will get commented out and will become a comment instead of a li element.

Because Google led me here, on Ubuntu 20.04 this works in 2020:

sudo apt install php7.4-xml

If on Apache2, remember to restart (probably not necessary):

sudo systemctl restart apache2

I was getting the same error; I had previously installed the google-play-services_lib for Google Maps (and it was working fine) but then when I later tried adding the meta-data entry to my Manifest I was getting the error. I tried all the above suggestions but nothing would link them properly; I finally removed the link from my project (project-properties-Android, remove google-play-services_lib library), then removed from Eclipse workspace, deleted the files on the disk, and finally used the SDK manager to reinstall from scratch.

That seemed to finally do the trick; now Eclipse has decided to allow me to leave the meta-data entry with no errors.

Using jQuery:

 $('#link_other a').each(function(){
  $(this).attr('target', '_BLANK');
 });

You have by default the static endpoint for static files. Also Flask application has the following arguments:

static_url_path: can be used to specify a different path for the static files on the web. Defaults to the name of the static_folder folder.

static_folder: the folder with static files that should be served at static_url_path. Defaults to the 'static' folder in the root path of the application.

It means that the filename argument will take a relative path to your file in static_folder and convert it to a relative path combined with static_url_default:

url_for('static', filename='path/to/file')

will convert the file path from static_folder/path/to/file to the url path static_url_default/path/to/file.

So if you want to get files from the static/bootstrap folder you use this code:

<link rel="stylesheet" type="text/css" href="{{ url_for('static', filename='bootstrap/bootstrap.min.css') }}">

Which will be converted to (using default settings):

<link rel="stylesheet" type="text/css" href="static/bootstrap/bootstrap.min.css">

Also look at url_for documentation.

Another point to mention is that you should ensure that your equality function is as you expect. You should override the equals method to set up what properties of your object have to match for two instances to be considered equal.

Then you can just do mylist.contains(item)

When ever you require to communicate between child to parent at any level down, then it's better to make use of context. In parent component define the context that can be invoked by the child such as

In parent component in your case component 3

static childContextTypes = {
        parentMethod: React.PropTypes.func.isRequired
      };

       getChildContext() {
        return {
          parentMethod: (parameter_from_child) => this.parentMethod(parameter_from_child)
        };
      }

parentMethod(parameter_from_child){
// update the state with parameter_from_child
}

Now in child component (component 5 in your case) , just tell this component that it want to use context of its parent.

 static contextTypes = {
       parentMethod: React.PropTypes.func.isRequired
     };
render(){
    return(
      <TouchableHighlight
        onPress={() =>this.context.parentMethod(new_state_value)}
         underlayColor='gray' >   

            <Text> update state in parent component </Text>              

      </TouchableHighlight>
)}

you can find Demo project at repo

CREATE TRIGGER sampleTrigger
    ON database1.dbo.table1
    FOR DELETE
AS
    DELETE FROM database2.dbo.table2
    WHERE bar = 4 AND ID IN(SELECT deleted.id FROM deleted)
GO

This C# code is to fetch all items from a dynamodb table using BatchGet or CreateBatchGet

        string tablename = "AnyTableName"; //table whose data you want to fetch

        var BatchRead = ABCContext.Context.CreateBatchGet<ABCTable>(  

            new DynamoDBOperationConfig
            {
                OverrideTableName = tablename; 
            });

        foreach(string Id in IdList) // in case you are taking string from input
        {
            Guid objGuid = Guid.Parse(Id); //parsing string to guid
            BatchRead.AddKey(objGuid);
        }

        await BatchRead.ExecuteAsync();
        var result = BatchRead.Results;

// ABCTable is the table modal which is used to create in dynamodb & data you want to fetch

var text = '<p>name</p><p><span style="font-size:xx-small;">ajde</span></p><p><em>da</em></p>';
var decoded = $('<textarea/>').html(text).text();
alert(decoded);

This sets the innerHTML of a new element (not appended to the page), causing jQuery to decode it into HTML, which is then pulled back out with .text().

Live demo.

I add a little extra comment just in case it helps anyone because I found this exchange useful but needed this little extra bit of info to get it all working.

To log to a specific facility using SysLogHandler you need to specify the facility value. Say for example that you have defined:

local3.* /var/log/mylog

in syslog, then you'll want to use:

handler = logging.handlers.SysLogHandler(address = ('localhost',514), facility=19)

and you also need to have syslog listening on UDP to use localhost instead of /dev/log.

I think the root for this confusion is well explained in this wikipedia article.

While the IANA-registered MIME type for ICO files is image/vnd.microsoft.icon, it was submitted to IANA in 2003 by a third party and is not recognised by Microsoft software, which uses image/x-icon instead.

If even the inventor of the ICO format does not use the official MIME type, I will use image/x-icon, too.

The error is explicit, you are trying to link libraries that were compiled with different CPU targets. An executable image can only contain pure x86 (32-bit) or pure x64 (64-bit) code. Mixing is not possible.

You change the target CPU by creating a new configuration for the project, only changing the linker setting isn't enough. Build + Configuration Manager, Active solution platform combo on upper right, choose New and select x64. That creates a new configuration with several modified project settings, most importantly the compiler that will be used.

Beware that prior to VS2010, the 64-bit compilers are not installed by default. If you don't see x64 in the platform combo then you'll need to re-run setup.exe and turn on the option to install the 64-bit compilers. Then also re-run any service pack installer you may have applied.

A possible approach with less pain points is to use the 32-bit version of the library.

This is an old question, but because the existing answers could be very dangerous, I wanted to leave this answer for future folks who might stumble in here...

The answers based on using an Object as a HashMap are broken and can cause extremely nasty consequences if you use anything other than a String as the key. The problem is that Object properties are coerced to Strings using the .toString method. This can lead to the following nastiness:

function MyObject(name) {
  this.name = name;
};
var key1 = new MyObject("one");
var key2 = new MyObject("two");

var map = {};
map[key1] = 1;
map[key2] = 2;

If you were expecting that Object would behave in the same way as a Java Map here, you would be rather miffed to discover that map only contains one entry with the String key [object Object]:

> JSON.stringify(map);
{"[object Object]": 2}

This is clearly not a replacement for Java's HashMap. Bizarrely, given it's age, Javascript does not currently have a general purpose map object. There is hope on the horizon, though: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map although a glance at the Browser Compatability table there will show that this isn't ready to used in general purpose web apps yet.

In the meantime, the best you can do is:

• Deliberately use Strings as keys. I.e. use explicit strings as keys rather than relying on the implicit .toString-ing of the keys you use.
• Ensure that the objects you are using as keys have a well-defined .toString() method that suits your understanding of uniqueness for these objects.
• If you cannot/don't want to change the .toString of the key Objects, when storing and retrieving the entries, convert the objects to a string which represents your understanding of uniqueness. E.g. map[toUniqueString(key1)] = 1

Sometimes, though, that is not possible. If you want to map data based on, for example File objects, there is no reliable way to do this because the attributes that the File object exposes are not enough to ensure its uniqueness. (You may have two File objects that represent different files on disk, but there is no way to distinguish between them in JS in the browser). In these cases, unfortunately, all that you can do is refactor your code to eliminate the need for storing these in a may; perhaps, by using an array instead and referencing them exclusively by index.

The following command deletes all your stashes:

git stash clear

From the git documentation:

clear

Remove all the stashed states.

IMPORTANT WARNING: Those states will then be subject to pruning, and may be impossible to recover (...).

I have found the creates option in the command module useful. How about this:

- name: Move foo to bar
  command: creates="path/to/bar" mv /path/to/foo /path/to/bar

I used to do a 2 task approach using stat like Bruce P suggests. Now I do this as one task with creates. I think this is a lot clearer.

https://github.com/john-kurkowski/tldextract

This is a more verbose version of urlparse. It detects domains and subdomains for you.

From their documentation:

>>> import tldextract
>>> tldextract.extract('http://forums.news.cnn.com/')
ExtractResult(subdomain='forums.news', domain='cnn', suffix='com')
>>> tldextract.extract('http://forums.bbc.co.uk/') # United Kingdom
ExtractResult(subdomain='forums', domain='bbc', suffix='co.uk')
>>> tldextract.extract('http://www.worldbank.org.kg/') # Kyrgyzstan
ExtractResult(subdomain='www', domain='worldbank', suffix='org.kg')

ExtractResult is a namedtuple, so it's simple to access the parts you want.

>>> ext = tldextract.extract('http://forums.bbc.co.uk')
>>> ext.domain
'bbc'
>>> '.'.join(ext[:2]) # rejoin subdomain and domain
'forums.bbc'

This Works for me in PySpark

df.select("column").collect()[0][0]

You can follow this answer to see many different ways to process CSV in C++.

In your case, the last call to getline is actually putting the last field of the first line and then all of the remaining lines into the variable genero. This is because there is no space delimiter found up until the end of file. Try changing the space character into a newline instead:

    getline(file, genero, file.widen('\n'));

or more succinctly:

    getline(file, genero);

In addition, your check for file.good() is premature. The last newline in the file is still in the input stream until it gets discarded by the next getline() call for ID. It is at this point that the end of file is detected, so the check should be based on that. You can fix this by changing your while test to be based on the getline() call for ID itself (assuming each line is well formed).

while (getline(file, ID, ',')) {
    cout << "ID: " << ID << " " ; 

    getline(file, nome, ',') ;
    cout << "User: " << nome << " " ;

    getline(file, idade, ',') ;
    cout << "Idade: " << idade << " "  ; 

    getline(file, genero);
    cout << "Sexo: " <<  genero<< " "  ;
}

For better error checking, you should check the result of each call to getline().

Why not use:

Dim msg as String = String.Format("Variable = {0}", variable)

More info on String.Format

Here is a function to convert UNICODE (ISO_8859_1) to UTF-8

public static String String_ISO_8859_1To_UTF_8(String strISO_8859_1) {
final StringBuilder stringBuilder = new StringBuilder();
for (int i = 0; i < strISO_8859_1.length(); i++) {
  final char ch = strISO_8859_1.charAt(i);
  if (ch <= 127) 
  {
      stringBuilder.append(ch);
  }
  else 
  {
      stringBuilder.append(String.format("%02x", (int)ch));
  }
}
String s = stringBuilder.toString();
int len = s.length();
byte[] data = new byte[len / 2];
for (int i = 0; i < len; i += 2) {
    data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4)
                         + Character.digit(s.charAt(i+1), 16));
}
String strUTF_8 =new String(data, StandardCharsets.UTF_8);
return strUTF_8;
}

TEST

String strA_ISO_8859_1_i = new String("??????".getBytes(StandardCharsets.UTF_8), StandardCharsets.ISO_8859_1);

System.out.println("ISO_8859_1 strA est = "+ strA_ISO_8859_1_i + "\n String_ISO_8859_1To_UTF_8 = " + String_ISO_8859_1To_UTF_8(strA_ISO_8859_1_i));

RESULT

ISO_8859_1 strA est = اÙغÙا٠String_ISO_8859_1To_UTF_8 = ??????

Its supported in notepad++ 5.0+ but not enabled by default. You can enable it from settings -> preferences

via Is there a way to link someone to a YouTube Video in HD 1080p quality?

Yes there is:

https://www.youtube.com/embed/Susj4jVWs0s?version=3&vq=hd720

options are:

default|none: vq=auto;
Code for auto: vq=auto;
Code for 2160p: vq=hd2160;
Code for 1440p: vq=hd1440;
Code for 1080p: vq=hd1080;
Code for 720p: vq=hd720;
Code for 480p: vq=large;
Code for 360p: vq=medium;
Code for 240p: vq=small;

As mentioned, you have to use the /embed/ or /v/ URL.

Note: Some copyrighted content doesn't support be played in this way

I'd just use zip:

In [1]: from pandas import *

In [2]: def calculate(x):
   ...:     return x*2, x*3
   ...: 

In [3]: df = DataFrame({'a': [1,2,3], 'b': [2,3,4]})

In [4]: df
Out[4]: 
   a  b
0  1  2
1  2  3
2  3  4

In [5]: df["A1"], df["A2"] = zip(*df["a"].map(calculate))

In [6]: df
Out[6]: 
   a  b  A1  A2
0  1  2   2   3
1  2  3   4   6
2  3  4   6   9

Virtual functions basically provide polymorphic behavior. That is, when you work with an object whose dynamic type is different than the static (compile time) type with which it is referred to, it provides behavior that is appropriate for the actual type of object instead of the static type of the object.

Now try to apply that sort of behavior to a constructor. When you construct an object the static type is always the same as the actual object type since:

To construct an object, a constructor needs the exact type of the object it is to create [...] Furthermore [...]you cannot have a pointer to a constructor

(Bjarne Stroustup (P424 The C++ Programming Language SE))

If one wants to have the conf\logging.properties read one must (see also here) dump this file into the Servers\Tomcat v7.0 Server at localhost-config\ folder and then add the lines :

-Djava.util.logging.config.file="${workspace_loc}\Servers\Tomcat v7.0 Server at localhost-config\logging.properties" -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager

to the VM arguments of the launch configuration one is using.

This may have taken a restart or two (or not) but finally I saw in the console in bright red :

FINE: No TLD files were found in [file:/C:/Dropbox/eclipse_workspaces/javaEE/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/ted2012/WEB-INF/lib/logback-classic-1.0.7.jar]. Consider adding the JAR to the tomcat.util.scan.DefaultJarScanner.jarsToSkip or org.apache.catalina.startup.TldConfig.jarsToSkip property in CATALINA_BASE/conf/catalina.properties file. //etc

I still don't know when exactly this FINE warning appears - does not appear immediately on tomcat launch EDIT: from the comment by @Stephan: "The FINE warning appears each time any change is done in the JSP file".

Bonus: To make the warning go away add in catalina.properties :

# Additional JARs (over and above the default JARs listed above) to skip when
# scanning for TLDs. The list must be a comma separated list of JAR file names.
org.apache.catalina.startup.TldConfig.jarsToSkip=logback-classic-1.0.7.jar,\
joda-time-2.1.jar,joda-time-2.1-javadoc.jar,mysql-connector-java-5.1.24-bin.jar,\
logback-core-1.0.7.jar,javax.servlet.jsp.jstl-api-1.2.1.jar

If you are writing a site which takes credit card numbers for payment:

1. You should probably be as permissive as possible, so that if it does expire, you allow the credit card company to catch it. So, allow it until the last second of the last day of the month.
2. Don't write your own credit card processing code. If^H^HWhen you write a bug, someone will lose real money. We all make mistakes, just don't make decisions that turn your mistakes into catastrophes.

I was having the same problem using my class SharedModule.

export class SharedModule {
    static forRoot(): ModuleWithProviders {
        return {
            ngModule: SharedModule,
            providers: [MyService]
         }
     }
}

Then I changed it putting directly in the app.modules this way

@NgModule({declarations: [
AppComponent,
NaviComponent],imports: [BrowserModule,RouterModule.forRoot(ROUTES),providers: [MoviesService],bootstrap: [MyService] })

Obs: I'm using "@angular/core": "^6.0.2".

I hope its help you.

You can try converting your image from tiff to PNG, here is how to do it:

import com.sun.media.jai.codec.ImageCodec;
import com.sun.media.jai.codec.ImageDecoder;
import com.sun.media.jai.codec.ImageEncoder;
import com.sun.media.jai.codec.PNGEncodeParam;
import com.sun.media.jai.codec.TIFFDecodeParam;
import java.awt.image.RenderedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import javaxt.io.Image;

public class ImgConvTiffToPng {

    public static byte[] convert(byte[] tiff) throws Exception {

        byte[] out = new byte[0];
        InputStream inputStream = new ByteArrayInputStream(tiff);

        TIFFDecodeParam param = null;

        ImageDecoder dec = ImageCodec.createImageDecoder("tiff", inputStream, param);
        RenderedImage op = dec.decodeAsRenderedImage(0);

        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();

        PNGEncodeParam jpgparam = null;
        ImageEncoder en = ImageCodec.createImageEncoder("png", outputStream, jpgparam);
        en.encode(op);
        outputStream = (ByteArrayOutputStream) en.getOutputStream();
        out = outputStream.toByteArray();
        outputStream.flush();
        outputStream.close();

        return out;

    }

We often see the construct df.loc[subscript] = … to assign to one DataFrame row. Mikhail_Sam posted benchmarks containing, among others, this construct as well as the method using dict and create DataFrame in the end. He found the latter to be the fastest by far. But if we replace the df3.loc[i] = … (with preallocated DataFrame) in his code with df3.values[i] = …, the outcome changes significantly, in that that method performs similar to the one using dict. So we should more often take the use of df.values[subscript] = … into consideration. However note that .values takes a zero-based subscript, which may be different from the DataFrame.index.

1. Open a Task Manager by pressing CTRL+ALT+DELETE, or right click at the bottom of the start menu and select Start Task Manager. see how to launch the task manager here

2. Click on Processes or depending on OS, Details. Judging by your screenshot it's Processes.

3. Look for adb.exe from that list, click on END PROCESS

4. Click on the restart button in that window above. That should do it.

Basically by suddenly removing your device ADB got confused and won't respond while waiting for a device, and Android Studio doesn't want multiple instances of an ADB server running, so you'll have to kill the previous server manually and restart the whole process.

One possibility which has not been mentioned so far is that you might not be editing the file you think you are. i.e. your editor might have a different cwd than you had in mind.

Run 'more' on the file you're compiling to double check that it does indeed have the contents you hope it does. Hope that helps!

StopWatch class looks for your best solution.

Stopwatch sw = Stopwatch.StartNew();
DoSomeWork();
sw.Stop();

Console.WriteLine("Time taken: {0}ms", sw.Elapsed.TotalMilliseconds);

Also it has a static field called Stopwatch.IsHighResolution. Of course, this is a hardware and operating system issue.

Indicates whether the timer is based on a high-resolution performance counter.

How about this:

from pandas import *

idx = Int64Index([171, 174, 173])
df = DataFrame(index = idx, data =([1,2,3]))
print df

It gives me:

     0
171  1
174  2
173  3

Is this what you are looking for?

I do some quick tests and have the following findings:

1) if using SynchronousQueue:

After the threads reach the maximum size, any new work will be rejected with the exception like below.

Exception in thread "main" java.util.concurrent.RejectedExecutionException: Task java.util.concurrent.FutureTask@3fee733d rejected from java.util.concurrent.ThreadPoolExecutor@5acf9800[Running, pool size = 3, active threads = 3, queued tasks = 0, completed tasks = 0]

at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2047)

2) if using LinkedBlockingQueue:

The threads never increase from minimum size to maximum size, meaning the thread pool is fixed size as the minimum size.

If you are using Lombok, make sure it have annotations like @Data or @Getter @Setter in your Response Model class.

To replace the second element in the array

arr = [1, 7, 9]

with the value 8

arr[1] = 8

You can use:

NOW() + INTERVAL 1 DAY

If you are only interested in the date, not the date and time then you can use CURDATE instead of NOW:

CURDATE() + INTERVAL 1 DAY

use mysql_real_escape_string() instead of mysqli_real_escape_string()

like so:

$username = mysql_real_escape_string($_POST['username']);

If you want to get all unique values without any approximation or setting a magic number (size: 500), then use COMPOSITE AGGREGATION (ES 6.5+).

From official documentation:

"If you want to retrieve all terms or all combinations of terms in a nested terms aggregation you should use the COMPOSITE AGGREGATION which allows to paginate over all possible terms rather than setting a size greater than the cardinality of the field in the terms aggregation. The terms aggregation is meant to return the top terms and does not allow pagination."

Implementation example in JavaScript:

const ITEMS_PER_PAGE = 1000;_x000D_
_x000D_
const body =  {_x000D_
    "size": 0, // Returning only aggregation results: https://www.elastic.co/guide/en/elasticsearch/reference/current/returning-only-agg-results.html_x000D_
    "aggs" : {_x000D_
        "langs": {_x000D_
            "composite" : {_x000D_
                "size": ITEMS_PER_PAGE,_x000D_
                "sources" : [_x000D_
                    { "language": { "terms" : { "field": "language" } } }_x000D_
                ]_x000D_
            }_x000D_
        }_x000D_
     }_x000D_
};_x000D_
_x000D_
const uniqueLanguages = [];_x000D_
_x000D_
while (true) {_x000D_
  const result = await es.search(body);_x000D_
_x000D_
  const currentUniqueLangs = result.aggregations.langs.buckets.map(bucket => bucket.key);_x000D_
_x000D_
  uniqueLanguages.push(...currentUniqueLangs);_x000D_
_x000D_
  const after = result.aggregations.langs.after_key;_x000D_
_x000D_
  if (after) {_x000D_
      // continue paginating unique items_x000D_
      body.aggs.langs.composite.after = after;_x000D_
  } else {_x000D_
      break;_x000D_
  }_x000D_
}_x000D_
_x000D_
console.log(uniqueLanguages);

My solution returns an int which can then be used in printf. It can also return the bits in big endian or little endian order.

#include <stdio.h>
#include <stdint.h>

int binary(uint8_t i,int bigEndian)
{
    int j=0,m = bigEndian ? 1 : 10000000;
    while (i)
    {
        j+=m*(i%2);
        if (bigEndian) m*=10; else m/=10;
        i >>= 1;
    }
    return j;
}

int main()
{
    char buf[]="ABCDEF";
    printf("\nbig endian = ");
    for (int i=0; i<5; i++) printf("%08d ",binary(buf[i],1));
    printf("\nwee endian = ");
    for (int i=0; i<5; i++) printf("%08d ",binary(buf[i],0));
    getchar();
    return 0;
}

Outputs

big endian = 01000001 01000010 01000011 01000100 01000101 01000110
wee endian = 10000010 01000010 11000010 00100010 10100010 01100010

Try this:

HTML

<div id="eventCheck"></div>

JAVASCRIPT

// ----------------------------------------------------//
// Todays date
var today = new Date();
var dd = today.getDate();
var mm = today.getMonth()+1; //January is 0!
var yyyy = today.getFullYear();

// Add Zero if it number is between 0-9
if(dd<10) {
    dd = '0'+dd;
}
if(mm<10) {
    mm = '0'+mm;
}

var today = yyyy + '' + mm + '' + dd ;


// ----------------------------------------------------//
// Day of event
var endDay = 15; // day 15
var endMonth = 01; // month 01 (January)
var endYear = 2017; // year 2017

// Add Zero if it number is between 0-9
if(endDay<10) {
    endDay = '0'+endDay;
} 
if(endMonth<10) {
    endMonth = '0'+endMonth;
}

// eventDay - date of the event
var eventDay = endYear + '/' + endMonth + '/' + endDay;
// ----------------------------------------------------//



// ----------------------------------------------------//
// check if eventDay has been or not
if ( eventDay < today ) {
    document.getElementById('eventCheck').innerHTML += 'Date has passed (event is over)';  // true
} else {
    document.getElementById('eventCheck').innerHTML += 'Date has not passed (upcoming event)'; // false
}

Fiddle: https://jsfiddle.net/zm75cq2a/

"...by a class and a div."

I assume when you say "div" you mean "id"? Try this:

$('#test2.test1').prop('checked', true);

No need to muck about with your [attributename=value] style selectors because id has its own format as does class, and they're easily combined although given that id is supposed to be unique it should be enough on its own unless your meaning is "select that element only if it currently has the specified class".

Or more generally to select an input where you want to specify a multiple attribute selector:

$('input:radio[class=test1][id=test2]').prop('checked', true);

That is, list each attribute with its own square brackets.

Note that unless you have a pretty old version of jQuery you should use .prop() rather than .attr() for this purpose.

A solution where the logo is truly centered and the links are justified.

The max recommended number of links for the nav is 6, depending on the length of the words in eache link.

If you have 5 links, insert an empty link and style it with:

class="hidden-xs" style="visibility: hidden;"

in this way the number of links is always even.

<link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet"/>_x000D_
<style>_x000D_
  .navbar-nav > li {_x000D_
    float: none;_x000D_
    vertical-align: bottom;_x000D_
  }_x000D_
  #site-logo {_x000D_
    position: relative;_x000D_
    vertical-align: bottom;_x000D_
    bottom: -35px;_x000D_
  }_x000D_
  #site-logo a {_x000D_
    margin-top: -53px;_x000D_
  }_x000D_
</style>_x000D_
<nav class="navbar navbar-default navbar-fixed-top">_x000D_
  <div class="container">_x000D_
    <div class="navbar-header">_x000D_
      <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">_x000D_
        <span class="sr-only">Nav</span>_x000D_
        <span class="icon-bar"></span>_x000D_
        <span class="icon-bar"></span>_x000D_
        <span class="icon-bar"></span>_x000D_
      </button>_x000D_
    </div>_x000D_
    <div id="navbar" class="collapse navbar-collapse">_x000D_
      <ul class="nav nav-justified navbar-nav center-block">_x000D_
        <li class="active"><a href="#">First Link</a></li>_x000D_
        <li><a href="#">Second Link</a></li>_x000D_
        <li><a href="#">Third Link</a></li>_x000D_
        <li id="site-logo" class="hidden-xs"><a href="#"><img id="logo-navbar-middle" src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/32877/logo-thing.png" width="200" alt="Logo Thing main logo"></a></li>_x000D_
        <li><a href="#">Fourth Link</a></li>_x000D_
        <li><a href="#">Fifth Link</a></li>_x000D_
        <li class="hidden-xs" style="visibility: hidden;"><a href="#">Sixth Link</a></li>_x000D_
      </ul>_x000D_
    </div>_x000D_
  </div>_x000D_
</nav>_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.0/jquery.min.js"></script>_x000D_
<script src="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>

To see result click on run snippet and then full page

Fiddle

Install brew or apt-get is also not easy for me so I downloaded mysql via: https://dev.mysql.com/downloads/connector/python/, installed it. So I can find mysql_config int this directory: /usr/local/mysql/bin

the next step is:

1. export PATH=$PATH:/usr/local/mysql/bin
2. pip install MySQL-python==1.2.5

The behavior of host objects <object> is due to ECMA262 implementation dependent and set attribute by setAttribute() method may fail.

I see two solutions:

1. soft: element.data = "http://www.google.com";

2. hard: remove object from DOM tree and create new one with changed data attribute.

Late to the party, but I think this addition might be useful for people working with rmarkdown. In rmarkdown there is built-in support for references to headers in your document.

Any header defined by

# Header

can be referenced by

get me back to that [header](#header)

The following is a minimal standalone .rmd file that shows this behavior. It can be knitted to .pdf and .html.

---
title: "references in rmarkdown"
output:
  html_document: default
  pdf_document: default
---

# Header

Write some more text. Write some more text. Write some more text. Write some more text. Write some more text. Write some more text. Write some more text. Write some more text. Write some more text. Write some more text. Write some more text. 

Go back to that [header](#header).

You can use this Javascript :

function getParameterByName(name) {
    var match = RegExp('[?&]' + name + '=([^&]*)').exec(window.location.search);
    return match && decodeURIComponent(match[1].replace(/\+/g, ' '));
}

OR

You can also use the plugin jQuery-URL-Parser allows to retrieve all parts of URL, including anchor, host, etc.

Usage is very simple and cool:

$.url().param("itemID")

via James&Alfa

React.MouseEvent works for me:

private onClick = (e: React.MouseEvent<HTMLInputElement>) => {
  let button = e.target as HTMLInputElement;
}

Very important note regarding use of Lookup:

You can create an instance of a Lookup(TKey, TElement) by calling ToLookup on an object that implements IEnumerable(T)

There is no public constructor to create a new instance of a Lookup(TKey, TElement). Additionally, Lookup(TKey, TElement) objects are immutable, that is, you cannot add or remove elements or keys from a Lookup(TKey, TElement) object after it has been created.

(from MSDN)

I'd think this would be a show stopper for most uses.

You could use Series.reindex:

import pandas as pd

idx = pd.date_range('09-01-2013', '09-30-2013')

s = pd.Series({'09-02-2013': 2,
               '09-03-2013': 10,
               '09-06-2013': 5,
               '09-07-2013': 1})
s.index = pd.DatetimeIndex(s.index)

s = s.reindex(idx, fill_value=0)
print(s)

yields

2013-09-01     0
2013-09-02     2
2013-09-03    10
2013-09-04     0
2013-09-05     0
2013-09-06     5
2013-09-07     1
2013-09-08     0
...

Firstly, with MacOS Catalina, the basic ways to change the ownership of /usr/local are no longer allowed. For example:

$ sudo chown -R "$USER":wheel /usr/local
Password:
chown: /usr/local: Operation not permitted
$ sudo chown -R "$USER" /usr/local
chown: /usr/local: Operation not permitted
$ sudo chown -R $(whoami) /usr/local
chown: /usr/local: Operation not permitted

Hence, the popular answers above cannot be used. Secondly, however, taking a step back, if the main concern is to install or upgrade Homebrew, rather than wanting to change the permissions for /usr/local per se, then it may be overkill (like taking a sledgehammer to hammer a nail) to change the permissions for /usr/local. It affects your whole machine and other software may also be using /usr/local. For example, I have files related to maven and mySQL in /usr/local.

A more precise solution is to follow the instructions to install Homebrew, given at the Homebrew GitHub site, namely

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"

which installs Homebrew inside /usr/local without changing ownership of /usr/local itself. Instead, Cellar, Caskroom, Frameworks, Homebrew, etc. are installed inside /usr/local. This seems to be a more elegant, precise solution in my opinion.

If the script only defines the functions and does nothing else, you can first execute the script within the context of the current shell using the source or . command and then simply call the function. See help source for more information.

How about this?

fmt.Printf("%c","HELLO"[1])

As Peter points out, to allow for more than just ASCII:

fmt.Printf("%c", []rune("HELLO")[1])

Comment out the middleware for html i.e.

//app.set('view engine', 'html');

Instead use:

app.get("/",(req,res)=>{
    res.sendFile("index.html");
});

To really properly do a merge which takes only input from the branch you are merging you can do

git merge --strategy=ours ref-to-be-merged

git diff --binary ref-to-be-merged | git apply --reverse --index

git commit --amend

There will be no conflicts in any scenario I know of, you don't have to make additional branches, and it acts like a normal merge commit.

This doesn't play nice with submodules however.

As @Ninefingers mentioned, pthreads are unix-only. Posix only, really.

That said, Microsoft does have a library that duplicates pthreads:

Microsoft Windows Services for UNIX Version 3.5

Library Download

/ starts from the root only, to get the relative path we should use ./ or ../

You can use a custom serializer at your money field. Here's an example with a MoneyBean. The field amount gets annotated with @JsonSerialize(using=...).

public class MoneyBean {
    //...

    @JsonProperty("amountOfMoney")
    @JsonSerialize(using = MoneySerializer.class)
    private BigDecimal amount;

    //getters/setters...
}

public class MoneySerializer extends JsonSerializer<BigDecimal> {
    @Override
    public void serialize(BigDecimal value, JsonGenerator jgen, SerializerProvider provider) throws IOException,
            JsonProcessingException {
        // put your desired money style here
        jgen.writeString(value.setScale(2, BigDecimal.ROUND_HALF_UP).toString());
    }
}

That's it. A BigDecimal is now printed in the right way. I used a simple testcase to show it:

@Test
public void jsonSerializationTest() throws Exception {
     MoneyBean m = new MoneyBean();
     m.setAmount(new BigDecimal("20.3"));

     ObjectMapper mapper = new ObjectMapper();
     assertEquals("{\"amountOfMoney\":\"20.30\"}", mapper.writeValueAsString(m));
}

Your script contains errors as well, for example if you have dos2unix installed your install works but if you don't like I did then it will fail with dependency issues.

I found this by accident as I was making a script file of this to give to my friend who is new to Linux and because I made the scripts on windows I directed him to install it, at the time I did not have dos2unix installed thus I got errors.

here is a copy of the script I made for your solution but have dos2unix installed.

#!/bin/sh
echo "deb http://ftp.debian.org/debian sid main" >> /etc/apt/sources.list
apt-get update
apt-get -t sid install libc6 libc6-dev libc6-dbg
echo "Please remember to hash out sid main from your sources list. /etc/apt/sources.list"

this script has been tested on 3 machines with no errors.

Use zip(*list):

>>> l = [(1,2), (3,4), (8,9)]
>>> list(zip(*l))
[(1, 3, 8), (2, 4, 9)]

The zip() function pairs up the elements from all inputs, starting with the first values, then the second, etc. By using *l you apply all tuples in l as separate arguments to the zip() function, so zip() pairs up 1 with 3 with 8 first, then 2 with 4 and 9. Those happen to correspond nicely with the columns, or the transposition of l.

zip() produces tuples; if you must have mutable list objects, just map() the tuples to lists or use a list comprehension to produce a list of lists:

map(list, zip(*l))          # keep it a generator
[list(t) for t in zip(*l)]  # consume the zip generator into a list of lists

If you want to use two decimal digits in your entire project, you can define:

bcscale(2);

Then the following function will produce your desired result:

$myvalue = 10.165445;
echo bcadd(0, $myvalue);
// result=10.11

But if you don't use the bcscale function, you need to write the code as follows to get your desired result.

$myvalue = 10.165445;
echo bcadd(0, $myvalue, 2);
// result=10.11

To know more

• BC Math Functions

• bcscale

I don't think there is a way to ignore adding DEFINERs to the dump. But there are ways to remove them after the dump file is created.

1. Open the dump file in a text editor and replace all occurrences of DEFINER=root@localhost with an empty string ""

2. Edit the dump (or pipe the output) using perl:

   perl -p -i.bak -e "s/DEFINER=\`\w.*\`@\`\d[0-3].*[0-3]\`//g" mydatabase.sql
   

3. Pipe the output through sed:

   mysqldump ... | sed -e 's/DEFINER[ ]*=[ ]*[^*]*\*/\*/' > triggers_backup.sql
   

Maybe a bit late but this react hook can help you get/set values in URL query: https://github.com/rudyhuynh/use-url-search-params (written by me).

It works with or without react-router. Below is code sample in your case:

import React from "react";
import { useUrlSearchParams } from "use-url-search-params";

const MyComponent = () => {
  const [params, setParams] = useUrlSearchParams()
  return (
    <div>
      __firebase_request_key: {params.__firebase_request_key}
    </div>
  )
}

Execute SELECT 1 and check if ExecuteScalar returns 1.

The answers for this old but relevant question are wildly variable in speed.

The fastest of the solution posted by kxr.

However, this is even faster and otherwise not here:

def f1(arr, find, replace):
    # fast and readable
    base=0
    for cnt in range(arr.count(find)):
        offset=arr.index(find, base)
        arr[offset]=replace
        base=offset+1

Here is timing for the various solutions. The faster ones are 3X faster than accepted answer and 5X faster than the slowest answer here.

To be fair, all methods needed to do inlace replacement of the array sent to the function.

Please see timing code below:

def f1(arr, find, replace):
    # fast and readable
    base=0
    for cnt in range(arr.count(find)):
        offset=arr.index(find, base)
        arr[offset]=replace
        base=offset+1
        
def f2(arr,find,replace):
    # accepted answer
    for i,e in enumerate(arr):
        if e==find: 
            arr[i]=replace
        
def f3(arr,find,replace):
    # in place list comprehension
    arr[:]=[replace if e==find else e for e in arr]
    
def f4(arr,find,replace):
    # in place map and lambda -- SLOW
    arr[:]=list(map(lambda x: x if x != find else replace, arr))
    
def f5(arr,find,replace):
    # find index with comprehension
    for i in [i for i, e in enumerate(arr) if e==find]:
        arr[i]=replace
        
def f6(arr,find,replace):
    # FASTEST but a little les clear
    try:
        while True:
            arr[arr.index(find)]=replace
    except ValueError:
        pass    

def f7(lst, old, new):
    """replace list elements (inplace)"""
    i = -1
    try:
        while 1:
            i = lst.index(old, i + 1)
            lst[i] = new
    except ValueError:
        pass
    
    
import time     

def cmpthese(funcs, args=(), cnt=1000, rate=True, micro=True):
    """Generate a Perl style function benchmark"""                   
    def pprint_table(table):
        """Perl style table output"""
        def format_field(field, fmt='{:,.0f}'):
            if type(field) is str: return field
            if type(field) is tuple: return field[1].format(field[0])
            return fmt.format(field)     

        def get_max_col_w(table, index):
            return max([len(format_field(row[index])) for row in table])         

        col_paddings=[get_max_col_w(table, i) for i in range(len(table[0]))]
        for i,row in enumerate(table):
            # left col
            row_tab=[row[0].ljust(col_paddings[0])]
            # rest of the cols
            row_tab+=[format_field(row[j]).rjust(col_paddings[j]) for j in range(1,len(row))]
            print(' '.join(row_tab))                

    results={}
    for i in range(cnt):
        for f in funcs:
            start=time.perf_counter_ns()
            f(*args)
            stop=time.perf_counter_ns()
            results.setdefault(f.__name__, []).append(stop-start)
    results={k:float(sum(v))/len(v) for k,v in results.items()}     
    fastest=sorted(results,key=results.get, reverse=True)
    table=[['']]
    if rate: table[0].append('rate/sec')
    if micro: table[0].append('\u03bcsec/pass')
    table[0].extend(fastest)
    for e in fastest:
        tmp=[e]
        if rate:
            tmp.append('{:,}'.format(int(round(float(cnt)*1000000.0/results[e]))))

        if micro:
            tmp.append('{:,.1f}'.format(results[e]/float(cnt)))

        for x in fastest:
            if x==e: tmp.append('--')
            else: tmp.append('{:.1%}'.format((results[x]-results[e])/results[e]))
        table.append(tmp) 

    pprint_table(table)                    



if __name__=='__main__':
    import sys
    import time 
    print(sys.version)
    cases=(
        ('small, found', 9, 100),
        ('small, not found', 99, 100),
        ('large, found', 9, 1000),
        ('large, not found', 99, 1000)
    )
    for txt, tgt, mul in cases:
        print(f'\n{txt}:')
        arr=[1,2,3,4,5,6,7,8,9,0]*mul 
        args=(arr,tgt,'X')
        cmpthese([f1,f2,f3, f4, f5, f6, f7],args)   

And the results:

3.9.1 (default, Feb  3 2021, 07:38:02) 
[Clang 12.0.0 (clang-1200.0.32.29)]

small, found:
   rate/sec µsec/pass     f4     f3     f5     f2     f6     f7     f1
f4  133,982       7.5     -- -38.8% -49.0% -52.5% -78.5% -78.6% -82.9%
f3  219,090       4.6  63.5%     -- -16.6% -22.4% -64.8% -65.0% -72.0%
f5  262,801       3.8  96.1%  20.0%     --  -6.9% -57.8% -58.0% -66.4%
f2  282,259       3.5 110.7%  28.8%   7.4%     -- -54.6% -54.9% -63.9%
f6  622,122       1.6 364.3% 184.0% 136.7% 120.4%     --  -0.7% -20.5%
f7  626,367       1.6 367.5% 185.9% 138.3% 121.9%   0.7%     -- -19.9%
f1  782,307       1.3 483.9% 257.1% 197.7% 177.2%  25.7%  24.9%     --

small, not found:
   rate/sec µsec/pass     f4     f5     f2     f3     f6     f7     f1
f4   13,846      72.2     -- -40.3% -41.4% -47.8% -85.2% -85.4% -86.2%
f5   23,186      43.1  67.5%     --  -1.9% -12.5% -75.2% -75.5% -76.9%
f2   23,646      42.3  70.8%   2.0%     -- -10.8% -74.8% -75.0% -76.4%
f3   26,512      37.7  91.5%  14.3%  12.1%     -- -71.7% -72.0% -73.5%
f6   93,656      10.7 576.4% 303.9% 296.1% 253.3%     --  -1.0%  -6.5%
f7   94,594      10.6 583.2% 308.0% 300.0% 256.8%   1.0%     --  -5.6%
f1  100,206      10.0 623.7% 332.2% 323.8% 278.0%   7.0%   5.9%     --

large, found:
   rate/sec µsec/pass     f4     f2     f5     f3     f6     f7     f1
f4      145   6,889.4     -- -33.3% -34.8% -48.6% -85.3% -85.4% -85.8%
f2      218   4,593.5  50.0%     --  -2.2% -22.8% -78.0% -78.1% -78.6%
f5      223   4,492.4  53.4%   2.3%     -- -21.1% -77.5% -77.6% -78.2%
f3      282   3,544.0  94.4%  29.6%  26.8%     -- -71.5% -71.6% -72.3%
f6      991   1,009.5 582.4% 355.0% 345.0% 251.1%     --  -0.4%  -2.8%
f7      995   1,005.4 585.2% 356.9% 346.8% 252.5%   0.4%     --  -2.4%
f1    1,019     981.3 602.1% 368.1% 357.8% 261.2%   2.9%   2.5%     --

large, not found:
   rate/sec µsec/pass     f4     f5     f2     f3     f6     f7     f1
f4      147   6,812.0     -- -35.0% -36.4% -48.9% -85.7% -85.8% -86.1%
f5      226   4,424.8  54.0%     --  -2.0% -21.3% -78.0% -78.1% -78.6%
f2      231   4,334.9  57.1%   2.1%     -- -19.6% -77.6% -77.7% -78.2%
f3      287   3,484.0  95.5%  27.0%  24.4%     -- -72.1% -72.2% -72.8%
f6    1,028     972.3 600.6% 355.1% 345.8% 258.3%     --  -0.4%  -2.7%
f7    1,033     968.2 603.6% 357.0% 347.7% 259.8%   0.4%     --  -2.3%
f1    1,057     946.2 619.9% 367.6% 358.1% 268.2%   2.8%   2.3%     --

A good question. Should tell you it took some time to crack this one. Here is my result.

DECLARE @TABLE TABLE
(  
ID INT,  
USERS VARCHAR(10),  
ACTIVITY VARCHAR(10),  
PAGEURL VARCHAR(10)  
)

INSERT INTO @TABLE  
VALUES  (1, 'Me', 'act1', 'ab'),
        (2, 'Me', 'act1', 'cd'),
        (3, 'You', 'act2', 'xy'),
        (4, 'You', 'act2', 'st')


SELECT T1.USERS, T1.ACTIVITY,   
        STUFF(  
        (  
        SELECT ',' + T2.PAGEURL  
        FROM @TABLE T2  
        WHERE T1.USERS = T2.USERS  
        FOR XML PATH ('')  
        ),1,1,'')  
FROM @TABLE T1  
GROUP BY T1.USERS, T1.ACTIVITY

For Swift 4.0, this got easier:

let defaults = UserDefaults.standard
//Set
defaults.set(passwordTextField.text, forKey: "Password")
//Get
let myPassword = defaults.string(forKey: "Password")

Indices with duplicate values often arise if you create a DataFrame by concatenating other DataFrames. IF you don't care about preserving the values of your index, and you want them to be unique values, when you concatenate the the data, set ignore_index=True.

Alternatively, to overwrite your current index with a new one, instead of using df.reindex(), set:

df.index = new_index

This is the answer, hope it helps someone :)

First there are two variations on how the xml can be written:

1

<row>
    <IdInvernadero>8</IdInvernadero>
    <IdProducto>3</IdProducto>
    <IdCaracteristica1>8</IdCaracteristica1>
    <IdCaracteristica2>8</IdCaracteristica2>
    <Cantidad>25</Cantidad>
    <Folio>4568457</Folio>
</row>
<row>
    <IdInvernadero>3</IdInvernadero>
    <IdProducto>3</IdProducto>
    <IdCaracteristica1>1</IdCaracteristica1>
    <IdCaracteristica2>2</IdCaracteristica2>
    <Cantidad>72</Cantidad>
    <Folio>4568457</Folio>
</row>

Answer:

SELECT  
       Tbl.Col.value('IdInvernadero[1]', 'smallint'),  
       Tbl.Col.value('IdProducto[1]', 'smallint'),  
       Tbl.Col.value('IdCaracteristica1[1]', 'smallint'),
       Tbl.Col.value('IdCaracteristica2[1]', 'smallint'),
       Tbl.Col.value('Cantidad[1]', 'int'),
       Tbl.Col.value('Folio[1]', 'varchar(7)')
FROM   @xml.nodes('//row') Tbl(Col)  

2.

<row IdInvernadero="8" IdProducto="3" IdCaracteristica1="8" IdCaracteristica2="8" Cantidad ="25" Folio="4568457" />                         
<row IdInvernadero="3" IdProducto="3" IdCaracteristica1="1" IdCaracteristica2="2" Cantidad ="72" Folio="4568457" />

Answer:

SELECT  
       Tbl.Col.value('@IdInvernadero', 'smallint'),  
       Tbl.Col.value('@IdProducto', 'smallint'),  
       Tbl.Col.value('@IdCaracteristica1', 'smallint'),
       Tbl.Col.value('@IdCaracteristica2', 'smallint'),
       Tbl.Col.value('@Cantidad', 'int'),
       Tbl.Col.value('@Folio', 'varchar(7)')

FROM   @xml.nodes('//row') Tbl(Col)

Taken from:

1. http://kennyshu.blogspot.com/2007/12/convert-xml-file-to-table-in-sql-2005.html

2. http://msdn.microsoft.com/en-us/library/ms345117(SQL.90).aspx

I have similar situation. In my case, it doesn't have a parent with position:relative. Just paste my solution here for those that might need.

position: fixed;
left: 0;
right: 0;

I think this could help you.

I made an extension since I have to compare dates in repositories filled with EF data and so .Date was not an option since it is not implemented in LinqToEntities translation.

Here is the code:

        /// <summary>
    /// Check if two dates are same
    /// </summary>
    /// <typeparam name="TElement">Type</typeparam>
    /// <param name="valueSelector">date field</param>
    /// <param name="value">date compared</param>
    /// <returns>bool</returns>
    public Expression<Func<TElement, bool>> IsSameDate<TElement>(Expression<Func<TElement, DateTime>> valueSelector, DateTime value)
    {
        ParameterExpression p = valueSelector.Parameters.Single();

        var antes = Expression.GreaterThanOrEqual(valueSelector.Body, Expression.Constant(value.Date, typeof(DateTime)));

        var despues = Expression.LessThan(valueSelector.Body, Expression.Constant(value.AddDays(1).Date, typeof(DateTime)));

        Expression body = Expression.And(antes, despues);

        return Expression.Lambda<Func<TElement, bool>>(body, p);
    }

then you can use it in this way.

 var today = DateTime.Now;
 var todayPosts = from t in turnos.Where(IsSameDate<Turno>(t => t.MyDate, today))
                                      select t);

Best performance method

sed '5q;d' file

Because sed stops reading any lines after the 5th one

Update experiment from Mr. Roger Dueck

I installed wcanadian-insane (6.6MB) and compared sed -n 1p /usr/share/dict/words and sed '1q;d' /usr/share/dict/words using the time command; the first took 0.043s, the second only 0.002s, so using 'q' is definitely a performance improvement!

In my case I had a href with a # and target.href was returning me the complete url. Target.hash did the work for me.

$(".test a").on('click', function(e) {
    console.log(e.target.href); // logs https://www.test.com/#test
    console.log(e.target.hash); // logs #test
  });

When setUp() is in a superclass of the test class (e.g. AbstractTestBase below), the accepted answer can be modified as follows:

public abstract class AbstractTestBase {
    private static Class<? extends AbstractTestBase> testClass;
    .....
    public void setUp() {
        if (this.getClass().equals(testClass)) {
            return;
        }

        // do the setup - once per concrete test class
        .....
        testClass = this.getClass();
    }
}

This should work for a single non-static setUp() method but I'm unable to produce an equivalent for tearDown() without straying into a world of complex reflection... Bounty points to anyone who can!

With using pathlib module, indentation isn't needed.

import pathlib
pathlib.Path("output.txt").write_text("Purchase Amount: {}" .format(TotalAmount))

As of python 3.6, f-strings is available.

pathlib.Path("output.txt").write_text(f"Purchase Amount: {TotalAmount}")

there are many ways. as awk solutions shows, it's the clean solution

sed solution is to delete anything till the last space. So if there is no space at the end, it should work

sed 's/.* //g' <file>

you can avoid sed also and go for a while loop.

while read line
do [ -z "$line" ] && continue ;
echo $line|rev|cut -f1 -d' '|rev
done < file

it reads a line, reveres it, cuts the first (i.e. last in the original) and restores back

the same can be done in a pure bash way

while read line
do [ -z "$line" ] && continue ;
echo ${line##* }
done < file

it is called parameter expansion

String[] result = "hi i'm paul".split("\\s+"); to split across one or more cases.

Or you could take a look at Apache Common StringUtils. It has StringUtils.split(String str) method that splits string using white space as delimiter. It also has other useful utility methods

simply assign a variable to () or " ", then when needed type

print(x, x, x, Hello World, x)

or something like that.

Hope this is a little less complicated:)

Add private constructor:

private FilePathHelper(){
    super();
}

1. Install mysqlclient

sudo pip3 install mysqlclient

if you get error:

Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-dbljg4tx/mysqlclient/

then:

 1. sudo apt install libmysqlclient-dev python-mysqldb

 2. sudo pip3 install mysqlclient

2. Modify settings.py

   DATABASES = {
       'default': {
           'ENGINE': 'django.db.backends.mysql',
           'NAME': 'website',
           'USER': 'root',
           'PASSWORD': '',
           'HOST': '127.0.0.1',
           'PORT': '3306',
           'OPTION': {'init_command':"SET sql_mode='STRICT_TRANS_TABLE',"},
       }
   }
   

This will return the first 200 characters of words:

preg_replace('/\s+?(\S+)?$/', '', substr($string, 0, 201));

Set height or the width of the image to be %100.

There is more in Stack Overflow question How do I auto-resize an image to fit a 'div' container?.

A simple way to find unique common elements of lists a and b:

a = [1,2,3]
b = [3,6,2]
for both in set(a) & set(b):
    print(both)

As said in previous answers the 'normal' way is to add it to a JScrollPane, but sometimes you don't want it to scroll (don't ask me when:)). Then you can add the TableHeader yourself. Like this:

JPanel tablePanel = new JPanel(new BorderLayout());
JTable table = new JTable();
tablePanel.add(table, BorderLayout.CENTER);
tablePanel.add(table.getTableHeader(), BorderLayout.NORTH);

You need to specify both source and destination, and if you want to copy directories you should look at the -r option.

So to recursively copy /home/user/whatever from remote server to your current directory:

scp -pr user@remoteserver:whatever .

I used this code to solve this problem.

<a href="https://twitter.com/intent/tweet?url=myUrl&text=myTitle" target="_blank"><img src="path_to_my_image"/></a>

You can check the tweet-button documentation here tweet-button

You could try https://hacss.io:

<a href="http://www.google.com" class=":hover{text-decoration:none;}">Google</a>

Demo

If you are not allowed to directly import modules you can define your own deepcopy function as -

def copyList(L):
if type(L[0]) != list:
    return [i for i in L]
else:
    return [copyList(L[i]) for i in range(len(L))]

It's working can be seen easily as -

>>> x = [[1,2,3],[3,4]]
>>> z = copyList(x)
>>> x
[[1, 2, 3], [3, 4]]
>>> z
[[1, 2, 3], [3, 4]]
>>> id(x)
2095053718720
>>> id(z)
2095053718528
>>> id(x[0])
2095058990144
>>> id(z[0])
2095058992192
>>>

First, angular-cli is deprecated and has been replaced with @angular/cli. So if you uninstall your existing angular-cli with npm uninstall angular-cli, then reinstall the package with the new name @angular/cli you might get some conflicts. My story on Windows 7 is:

I had installed angular-cli and reinstalled using npm install -g @angular/cli, but after doing some config changes to command-line tools, I started getting the ng command not found issue. I spent several hours trying to fix this but none of the above issues alone worked. I was able to fix it using these steps:

Install Rapid Environment Editor and remove any PATH entries for node, npm, angular-cli or @angular/cli. Node.js will be in your System path, npm and angular entries are in the User path.

Uninstall node.js and reinstall the current version (for me 6.11.1). Run Rapid Environment Editor again and make sure node.js and npm are in your System or User path. Uninstall any existing ng versions with:

npm uninstall -g angular-cli

npm uninstall -g @angular/cli

npm cache clean

Delete the C:\Users\%YOU%\AppData\Roaming\npm\node_modules\@angular folder.

Reboot, then, finally, run:

npm install -g @angular/cli

Then hold your breath and run:

ng -v

If you're lucky, you'll get some love. Hold your breath henceforward every time you run the ng command, because 'command not found' has magically reappeared for me several times after ng was running fine and I thought the problem was solved.

The situation:

You are on your branch, let's say master and you have your commit on any other branch. You have to pick only one file from that particular commit.

The approach:

Step 1: Checkout on the required branch.

git checkout master

Step 2: Make sure you have copied the required commit hash.

git checkout commit_hash path\to\file

Step 3: You now have the changes of the required file on your desired branch. You just need to add and commit them.

git add path\to\file
git commit -m "Your commit message"

A 24 hour clock:

setInterval(function(){

        var currentTime = new Date();
        var hours = currentTime.getHours();
        var minutes = currentTime.getMinutes();
        var seconds = currentTime.getSeconds();

        // Add leading zeros
        minutes = (minutes < 10 ? "0" : "") + minutes;
        seconds = (seconds < 10 ? "0" : "") + seconds;
        hours = (hours < 10 ? "0" : "") + hours;

        // Compose the string for display
        var currentTimeString = hours + ":" + minutes + ":" + seconds;
        $(".clock").html(currentTimeString);

},1000);

// 24 hour clock  _x000D_
setInterval(function() {_x000D_
_x000D_
  var currentTime = new Date();_x000D_
  var hours = currentTime.getHours();_x000D_
  var minutes = currentTime.getMinutes();_x000D_
  var seconds = currentTime.getSeconds();_x000D_
_x000D_
  // Add leading zeros_x000D_
  hours = (hours < 10 ? "0" : "") + hours;_x000D_
  minutes = (minutes < 10 ? "0" : "") + minutes;_x000D_
  seconds = (seconds < 10 ? "0" : "") + seconds;_x000D_
_x000D_
  // Compose the string for display_x000D_
  var currentTimeString = hours + ":" + minutes + ":" + seconds;_x000D_
  $(".clock").html(currentTimeString);_x000D_
_x000D_
}, 1000);

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<div class="clock"></div>

Save it to the same variable

data["column01"].where(data["column01"]< 5, inplace=True)

Save it to a separate variable

data["column02"] = data["column01"].where(data["column1"]< 5)

But, you can always overwrite the variable

data["column01"] = data["column01"].where(data["column1"]< 5)

FYI: In default inplace = False

I tried the code posted by larsmans above but, there are a couple of problems:

1) The code as is will throw the error as mentioned by mauguerra 2) If you change the code to the following:

...
    d1 = d1.strftime("%Y-%m-%d")
    d2 = d2.strftime("%Y-%m-%d")
    return abs((d2 - d1).days)

This will convert your datetime objects to strings but, two things

1) Trying to do d2 - d1 will fail as you cannot use the minus operator on strings and 2) If you read the first line of the above answer it stated, you want to use the - operator on two datetime objects but, you just converted them to strings

What I found is that you literally only need the following:

import datetime

end_date = datetime.datetime.utcnow()
start_date = end_date - datetime.timedelta(days=8)
difference_in_days = abs((end_date - start_date).days)

print difference_in_days

Yes you should re-install node:

sudo rm -rf /usr/local/lib/node_modules/npm
 brew uninstall --force node                
 brew install node

Defining useful repr() methods for your classes (so you can see what an object is) and using repr() or "%r" % (...) or "...{0!r}..".format(...) in your debug messages/logs is IMHO a key to efficient debugging.

Also, the debuggers mentioned in other answers will make use of the repr() methods.

No but JavaFX has it.

Cf. Stack Overflow: Java Pair class implementation

as explained here

With help from numpy one can calculate for example a linear fitting.

# plot the data itself
pylab.plot(x,y,'o')

# calc the trendline
z = numpy.polyfit(x, y, 1)
p = numpy.poly1d(z)
pylab.plot(x,p(x),"r--")
# the line equation:
print "y=%.6fx+(%.6f)"%(z[0],z[1])

Update: Installing latest version of gcc 9: (gcc 9.3.0) - released March 12, 2020:

Same method can be applied to gcc 10 (gcc 10.1.0) - released May 7, 2020

Download file: gcc-9.3.0.tar.gz or gcc-10.1.0.tar.gz

Compile and install:

//required libraries: (some may already have been installed)
dnf install libmpc-devel mpfr-devel gmp-devel

//if dnf install libmpc-devel is not working try:
dnf --enablerepo=PowerTools install libmpc-devel

//install zlib
dnf install zlib-devel*

./configure --with-system-zlib --disable-multilib --enable-languages=c,c++

make -j 8 <== this may take around an hour or more to finish
              (depending on your cpu speed)

make install

Tested under CentOS 7.8.2003 for gcc 9.3 and gcc 10.1

Tested under CentOS 8.1.1911 for gcc 10.1 (may take more time to compile)

Results: gcc/g++ 9.3.0/10.1.0

Installing gcc 7.4 (gcc 7.4.0) - released December 6, 2018:

Download file: https://ftp.gnu.org/gnu/gcc/gcc-7.4.0/gcc-7.4.0.tar.gz

Compile and install:

//required libraries:
yum install libmpc-devel mpfr-devel gmp-devel

./configure --with-system-zlib --disable-multilib --enable-languages=c,c++

make -j 8 <== this may take around 50 minutes or less to finish with 8 threads
              (depending on your cpu speed)


make install

Result:

Notes:

1. This Stack Overflow answer will help to see how to verify the downloaded source file.

2. Use the option --prefix to install gcc to another directory other than the default one. The toplevel installation directory defaults to /usr/local. Read about gcc installation options

You can have multiple .gitignore, each one of course in its own directory.
To check which gitignore rule is responsible for ignoring a file, use git check-ignore: git check-ignore -v -- afile.

And you can have different version of a .gitignore file per branch: I have already seen that kind of configuration for ensuring one branch ignores a file while the other branch does not: see this question for instance.

If your repo includes several independent projects, it would be best to reference them as submodules though.
That would be the actual best practices, allowing each of those projects to be cloned independently (with their respective .gitignore files), while being referenced by a specific revision in a global parent project.
See true nature of submodules for more.

Note that, since git 1.8.2 (March 2013) you can do a git check-ignore -v -- yourfile in order to see which gitignore run (from which .gitignore file) is applied to 'yourfile', and better understand why said file is ignored.
See "which gitignore rule is ignoring my file?"

Your understanding is correct. I wonder why you don't see any advantages in ContextLoaderListener. For example, you need to build a session factory (to manage database). This operation can take some time, so it's better to do it on startup. Of course you can do it with init servlets or something else, but the advantage of Spring's approach is that you make configuration without writing code.

If you can use psutil, then this works perfectly:

import subprocess

import psutil


def kill(proc_pid):
    process = psutil.Process(proc_pid)
    for proc in process.children(recursive=True):
        proc.kill()
    process.kill()


proc = subprocess.Popen(["infinite_app", "param"], shell=True)
try:
    proc.wait(timeout=3)
except subprocess.TimeoutExpired:
    kill(proc.pid)

I'm not sure what your reasons are, and even if you could pull it off somehow with Reflection Emit (I' not sure that you can), it doesn't sound like a good idea. What is probably a better idea is to have some kind of Dictionary and you can wrap access to the dictionary through methods in your class. That way you can store the data from the database in this dictionary, and then retrieve them using those methods.

I would open another terminal on your laptop and do the scp from there, since you already know how to set that connection up.

scp username@remotecomputer:/path/to/file/you/want/to/copy where/to/put/file/on/laptop

The username@remotecomputer is the same string you used with ssh initially.

Select multiple lines by clicking first line then holding shift and clicking last line. Then press:

CTRL+SHIFT+L

or on MAC: CMD+SHIFT+L (as per comments)

Alternatively you can select lines and go to SELECTION MENU >> SPLIT INTO LINES.

Now you can edit multiple lines, move cursors etc. for all selected lines.

In market client on phones at least featured apps with high ratings get to display the promotional graphic.

This is the one that shows up on top even before you start searching the market for a specific app.

See this answer from Android market forum.

Edited: One of the google employee gives some clarifications here

Update: Both links above are now broken but the detailed information can be found here

Selected applications have the ability to be featured atop their respective categories. This is not a guaranteed feature, but uploading promotional graphics is something that we recommend.

RegExp can be used on the input string not just technically but practically with the match method too.

Because the output of the match() is an array we need to retrieve the first array element of the result. When the match fails, the function returns null. To avoid an exception error we will add the || conditional operator before accessing the first array element and test against the input property that is a static property of regular expressions that contains the input string.

str = 'XYZ test';
switch (str) {
  case (str.match(/^xyz/) || {}).input:
    console.log("Matched a string that starts with 'xyz'");
    break;
  case (str.match(/test/) || {}).input:
    console.log("Matched the 'test' substring");        
    break;
  default:
    console.log("Didn't match");
    break;
}

Another approach is to use the String() constructor to convert the resulting array that must have only 1 element (no capturing groups) and whole string must be captured with quanitifiers (.*) to a string. In case of a failure the null object will become a "null" string. Not convenient.

str = 'haystack';
switch (str) {
  case String(str.match(/^hay.*/)):
    console.log("Matched a string that starts with 'hay'");
    break;
}

Anyway, a more elegant solution is to use the /^find-this-in/.test(str) with switch (true) method which simply returns a boolean value and it's easier to search without case sensitivity.

Quickfix

I had similar issue and I resolved it doing the following

1. Navigate to jenkins > Manage jenkins > In-process Script Approval
2. There was a pending command, which I had to approve.

Alternative 1: Disable sandbox

As this article explains in depth, groovy scripts are run in sandbox mode by default. This means that a subset of groovy methods are allowed to run without administrator approval. It's also possible to run scripts not in sandbox mode, which implies that the whole script needs to be approved by an administrator at once. This preventing users from approving each line at the time.

Running scripts without sandbox can be done by unchecking this checkbox in your project config just below your script:

Alternative 2: Disable script security

As this article explains it also possible to disable script security completely. First install the permissive script security plugin and after that change your jenkins.xml file add this argument:

-Dpermissive-script-security.enabled=true

So you jenkins.xml will look something like this:

<executable>..bin\java</executable>
<arguments>-Dpermissive-script-security.enabled=true -Xrs -Xmx4096m -Dhudson.lifecycle=hudson.lifecycle.WindowsServiceLifecycle -jar "%BASE%\jenkins.war" --httpPort=80 --webroot="%BASE%\war"</arguments>

Make sure you know what you are doing if you implement this!

Technology used: Windows 7, UFT 32 bit, Data Source ODBC pointing out to 32 bit C:\Windows\System32\odbcad32.exe, Oracle client with both versions installed 32 bit and 64 bit.

What worked for me:

1.Start -> search for Edit the system environment variables
2.System Variables -> Edit Path
3.Place the path for Oracle client 32 bit in front of the path for Oracle Client 64 bit.

Ex:

C:\APP\ORACLE\product\11.2.0\client_32\bin;C:\APP\ORACLE\product\11.2.0\client_64\bin

For example if there is employee table which consists of columns as:

employee_number,f_name,l_name,email_id,phone_number 

if we want to concatenate f_name + l_name as name.

SELECT employee_number,f_name ::TEXT ||','|| l_name::TEXT  AS "NAME",email_id,phone_number,designation FROM EMPLOYEE;

I happened to encounter this similar SSL problem a few days ago. The problem is your npm does not set root certificate for the certificate used by https://registry.npmjs.org.

Solutions:

1. Use wget https://registry.npmjs.org/coffee-script --ca-certificate=./DigiCertHighAssuranceEVRootCA.crt to fix wget problem
2. Use npm config set cafile /path/to/DigiCertHighAssuranceEVRootCA.crt to set root certificate for your npm program.

you can download root certificate from : https://www.digicert.com/CACerts/DigiCertHighAssuranceEVRootCA.crt

Notice: Different program may use different way of managing root certificate, so do not mix browser's with others.

Analysis:

let's fix your wget https://registry.npmjs.org/coffee-script problem first. your snippet says:

        ERROR: cannot verify registry.npmjs.org's certificate,
        issued by /C=US/ST=CA/L=Oakland/O=npm/OU=npm 
       Certificate Authority/CN=npmCA/[email protected]:
       Unable to locally verify the issuer's authority.

This means that your wget program cannot verify https://registry.npmjs.org's certificate. There are two reasons that may cause this problem:

1. Your wget program does not have this domain's root certificate. The root certificate usually ship with system.
2. The domain does not pack root certificate into his certificate.

So the solution is explicitly set root certificate for https://registry.npmjs.org. We can use openssl to make sure that the reason bellow is the problem.

Try openssl s_client -host registry.npmjs.org -port 443 on the command line and we will get this message (first several lines):

    CONNECTED(00000003)
    depth=1 /C=US/O=DigiCert Inc/OU=www.digicert.com/CN=DigiCert High Assurance CA-3
    verify error:num=20:unable to get local issuer certificate
    verify return:0
    ---
    Certificate chain
     0 s:/C=US/ST=California/L=San Francisco/O=Fastly, Inc./CN=a.sni.fastly.net
       i:/C=US/O=DigiCert Inc/OU=www.digicert.com/CN=DigiCert High Assurance CA-3
     1 s:/C=US/O=DigiCert Inc/OU=www.digicert.com/CN=DigiCert High Assurance CA-3
       i:/C=US/O=DigiCert Inc/OU=www.digicert.com/CN=DigiCert High Assurance EV Root CA
    ---

This line verify error:num=20:unable to get local issuer certificate makes sure that https://registry.npmjs.org does not pack root certificate. So we Google DigiCert High Assurance EV Root CA root Certificate.

Suppose you are calling a web service using HttpWebRequest and HttpWebResponse, because .Net client doest support the structure of the WSLD that your are trying to consume.

In that case you can add the security credentials on the headers like:

<soap:Envelpe>
<soap:Header>
    <wsse:Security soap:mustUnderstand='true' xmlns:wsse='http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd' xmlns:wsu='http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd'><wsse:UsernameToken wsu:Id='UsernameToken-3DAJDJSKJDHFJASDKJFKJ234JL2K3H2K3J42'><wsse:Username>YOU_USERNAME/wsse:Username><wsse:Password Type='http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText'>YOU_PASSWORD</wsse:Password><wsse:Nonce EncodingType='http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary'>3WSOKcKKm0jdi3943ts1AQ==</wsse:Nonce><wsu:Created>2015-01-12T16:46:58.386Z</wsu:Created></wsse:UsernameToken></wsse:Security>
</soapHeather>
<soap:Body>
</soap:Body>


</soap:Envelope>

You can use SOAPUI to get the wsse Security, using the http log.

Be careful because it is not a safe scenario.

Android Annotations:

@OptionsItem(android.R.id.home)
void homeSelected() {
    onBackPressed();
}

Source: https://github.com/excilys/androidannotations

Try this:

 driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);

Since I use underscore.js in almost every project, I would use the keys function:

var obj = {name: 'gach', hello: 'world'};
console.log(_.keys(obj));

The output of that will be:

['name', 'hello']

Just in case if this helps anybody.

Python version: 3.7.7 platform: Ubuntu 18.04.4 LTS

This came with default python version 3.6.9, however I had installed my own 3.7.7 version python on it (installed building it from source)

tkinter was not working even when the help('module') shows tkinter in the list.

The following steps worked for me:

1. sudo apt-get install tk-dev.

rebuild the python: 1. Navigate to your python folder and run the checks:

cd Python-3.7.7
sudo ./configure --enable-optimizations

2. Build using make command: sudo make -j 8 --- here 8 are the number of processors, check yours using nproc command.

3. Installing using:

   sudo make altinstall
   

Don't use sudo make install, it will overwrite default 3.6.9 version, which might be messy later.

4. Check tkinter now

   python3.7 -m tkinter
   

A windows box will pop up, your tkinter is ready now.

Use capital HH to get hour of day format, instead of am/pm hours

#!/usr/bin/python

with open(FileName) as f:
    newText=f.read().replace('A', 'Orange')

with open(FileName, "w") as f:
    f.write(newText)

Flexible box layout

With the advent of the CSS Flexible Box, many of web designers' nightmares¹ have been resolved. One of the most hacky ones, the vertical alignment. Now it is possible even in unknown heights.

"Two decades of layout hacks are coming to an end. Maybe not tomorrow, but soon, and for the rest of our lives."

— CSS Legendary Eric Meyer at W3Conf 2013

Flexible Box (or in short, Flexbox), is a new layout system that is specifically designed for layout purposes. The specification states:

Flex layout is superficially similar to block layout. It lacks many of the more complex text- or document-centric properties that can be used in block layout, such as floats and columns. In return it gains simple and powerful tools for distributing space and aligning content in ways that webapps and complex web pages often need.

How can it help in this case? Well, let's see.

Vertical aligned columns

Using Twitter Bootstrap we have .rows having some .col-*s. All we need to do is to display the desired .row² as a flex container box and then align all its flex items (the columns) vertically by align-items property.

EXAMPLE HERE (Please read the comments with care)

<div class="container">
    <div class="row vertical-align"> <!--
                    ^--  Additional class -->
        <div class="col-xs-6"> ... </div>
        <div class="col-xs-6"> ... </div>
    </div>
</div>

.vertical-align {
    display: flex;
    align-items: center;
}

The Output

Colored area displays the padding-box of columns.

Clarifying on align-items: center

8.3 Cross-axis Alignment: the align-items property

Flex items can be aligned in the cross axis of the current line of the flex container, similar to justify-content but in the perpendicular direction. align-items sets the default alignment for all of the flex container’s items, including anonymous flex items.

align-items: center; By center value, the flex item’s margin box is centered in the cross axis within the line.

Big Alert

Important note #1: Twitter Bootstrap doesn't specify the width of columns in extra small devices unless you give one of .col-xs-# classes to the columns.

Therefore in this particular demo, I have used .col-xs-* classes in order for columns to be displayed properly in mobile mode, because it specifies the width of the column explicitly.

But alternatively you could switch off the Flexbox layout simply by changing display: flex; to display: block; in specific screen sizes. For instance:

/* Extra small devices (767px and down) */
@media (max-width: 767px) {
    .row.vertical-align {
        display: block; /* Turn off the flexible box layout */
    }
}

Or you could specify .vertical-align only on specific screen sizes like so:

/* Small devices (tablets, 768px and up) */
@media (min-width: 768px) {
    .row.vertical-align {
        display: flex;
        align-items: center;
    }
}

In that case, I'd go with @KevinNelson's approach.

Important note #2: Vendor prefixes omitted due to brevity. Flexbox syntax has been changed during the time. The new written syntax won't work on older versions of web browsers (but not that old as Internet Explorer 9! Flexbox is supported on Internet Explorer 10 and later).

This means you should also use vendor-prefixed properties like display: -webkit-box and so on in production mode.

If you click on "Toggle Compiled View" in the Demo, you'll see the prefixed version of CSS declarations (thanks to Autoprefixer).

Full-height columns with vertical aligned contents

As you see in the previous demo, columns (the flex items) are no longer as high as their container (the flex container box. i.e. the .row element).

This is because of using center value for align-items property. The default value is stretch so that the items can fill the entire height of the parent element.

In order to fix that, you can add display: flex; to the columns as well:

EXAMPLE HERE (Again, mind the comments)

.vertical-align {
  display: flex;
  flex-direction: row;
}

.vertical-align > [class^="col-"],
.vertical-align > [class*=" col-"] {
  display: flex;
  align-items: center;     /* Align the flex-items vertically */
  justify-content: center; /* Optional, to align inner flex-items
                              horizontally within the column  */
}

The Output

Colored area displays the padding-box of columns.

Last, but not least, notice that the demos and code snippets here are meant to give you a different idea, to provide a modern approach to achieve the goal. Please mind the "Big Alert" section if you are going to use this approach in real world websites or applications.

For further reading including browser support, these resources would be useful:

• Mozilla Developer Network - Flexible boxes
• Guide To Flexbox - CSS Tricks
• HTML5Rocks - Flexbox quick
• SmashingMagazine - Centering Elements with Flexbox
• Philip Walton - Solved By Flexbox
• Can I Use: Flexible Box Layout Module

^{1. Vertically align an image inside a div with responsive height 2. It's better to use an additional class in order not to alter Twitter Bootstrap's default .row.}

Here is complete solution w.r.t exception/error handling for auto increment, this solution is backward compatible and will work on 11g & 12c, specifically if application is in production.

Please replace 'TABLE_NAME' with your appropriate table name

--checking if table already exisits
BEGIN
    EXECUTE IMMEDIATE 'DROP TABLE TABLE_NAME';
    EXCEPTION WHEN OTHERS THEN NULL;
END;
/

--creating table
CREATE TABLE TABLE_NAME (
       ID NUMBER(10) PRIMARY KEY NOT NULL,
       .
       .
       .
);

--checking if sequence already exists
BEGIN
    EXECUTE IMMEDIATE 'DROP SEQUENCE TABLE_NAME_SEQ';
    EXCEPTION WHEN OTHERS THEN NULL;
END;

--creating sequence
/
CREATE SEQUENCE TABLE_NAME_SEQ START WITH 1 INCREMENT BY 1 MINVALUE 1 NOMAXVALUE NOCYCLE CACHE 2;

--granting rights as per required user group
/
GRANT SELECT, INSERT, UPDATE, DELETE ON TABLE_NAME TO USER_GROUP;

-- creating trigger
/
CREATE OR REPLACE TRIGGER TABLE_NAME_TS BEFORE INSERT OR UPDATE ON TABLE_NAME FOR EACH ROW
BEGIN    
    -- auto increment column
    SELECT TABLE_NAME_SEQ.NextVal INTO :New.ID FROM dual;

    -- You can also put some other required default data as per need of your columns, for example
    SELECT SYS_CONTEXT('USERENV', 'SESSIONID') INTO :New.SessionID FROM dual;
    SELECT SYS_CONTEXT('USERENV','SERVER_HOST') INTO :New.HostName FROM dual;
    SELECT SYS_CONTEXT('USERENV','OS_USER') INTO :New.LoginID FROM dual;    
    .
    .
    .
END;
/

The problem was actually in the version Android Studio 1.3 updated from the canary channel. I updated my studio to 1.3 and got the same error but reverting back to studio 1.2.1 made my project run fine.

The CSS place-items shorthand property sets the align-items and justify-items properties, respectively. If the second value is not set, the first value is also used for it.

.parent {
  display: grid;
  place-items: center;
}

KeyPress is a higher level of abstraction than KeyDown (and KeyUp). KeyDown and KeyUp are hardware related: the actual action of a key on the keyboard. KeyPress is more "I received a character from the keyboard".

Browser security settings prevent people from modifying the displayed url directly. You could imagine the phishing vulnerabilities that would cause.

Only reliable way to change the url without changing pages is to use an internal link or hash. e.g.: http://site.com/page.html becomes http://site.com/page.html#item1 . This technique is often used in hijax(AJAX + preserve history).

When doing this I'll often just use links for the actions with the hash as the href, then add click events with jquery that use the requested hash to determine and delegate the action.

I hope that sets you on the right path.

If you don't want to import csv module for that, you can write a list of lists to a csv file using only Python built-ins

with open("output.csv", "w") as f:
    for row in a:
        f.write("%s\n" % ','.join(str(col) for col in row))

1. The degree sign belongs to the number, and not to the "C". You can regard the degree sign as a number symbol, just like the minus sign.
2. There shall not be any space between the digits and the degree sign.
3. There shall be a non-breaking space between the degree sign and the "C".

I used the System.Xml.Linq.XElement for the purpose. Just check code below for reading the value of first child node of the xml(not the root node).

        string textXml = "<xmlroot><firstchild>value of first child</firstchild>........</xmlroot>";
        XElement xmlroot = XElement.Parse(textXml);
        string firstNodeContent = ((System.Xml.Linq.XElement)(xmlroot.FirstNode)).Value;

This is a slight modification from a previous solution. My example looks for stderr redirection in bash scripts: grep '2>' $(find . -name "*.bash")

For those of you, who doesn't like this monstrous new AClass[] { ... } syntax, here's some sugar:

public AClass[] c(AClass... arr) { return arr; }

Use this little function as you like:

AClass[] array;
...
array = c(object1, object2);

uint16_t is unsigned 16-bit integer.

unsigned short int is unsigned short integer, but the size is implementation dependent. The standard only says it's at least 16-bit (i.e, minimum value of UINT_MAX is 65535). In practice, it usually is 16-bit, but you can't take that as guaranteed.

Note:

1. If you want a portable unsigned 16-bit integer, use uint16_t.
2. inttypes.h and stdint.h are both introduced in C99. If you are using C89, define your own type.
3. uint16_t may not be provided in certain implementation(See reference below), but unsigned short int is always available.

Reference: C11(ISO/IEC 9899:201x) §7.20 Integer types

For each type described herein that the implementation provides) shall declare that typedef name and define the associated macros. Conversely, for each type described herein that the implementation does not provide, shall not declare that typedef name nor shall it define the associated macros. An implementation shall provide those types described as ‘‘required’’, but need not provide any of the others (described as ‘optional’’).

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

What you need to do is create a Stream out of the Map's .entrySet():

// Map<K, V> --> Set<Map.Entry<K, V>> --> Stream<Map.Entry<K, V>>
map.entrySet().stream()

From the on, you can .filter() over these entries. For instance:

// Stream<Map.Entry<K, V>> --> Stream<Map.Entry<K, V>>
.filter(entry -> entry.getKey() == 1)

And to obtain the values from it you .map():

// Stream<Map.Entry<K, V>> --> Stream<V>
.map(Map.Entry::getValue)

Finally, you need to collect into a List:

// Stream<V> --> List<V>
.collect(Collectors.toList())

If you have only one entry, use this instead (NOTE: this code assumes that there is a value; otherwise, use .orElse(); see the javadoc of Optional for more details):

// Stream<V> --> Optional<V> --> V
.findFirst().get()

There is a tutorial on how to use Ajax here: https://www.w3schools.com/xml/ajax_intro.asp

This is an example code taken from that tutorial:

<html>

<head>
    <script type="text/javascript">
        function loadXMLDoc()
        {
            var xmlhttp;
            if (window.XMLHttpRequest)
            {
              // Code for Internet Explorer 7+, Firefox, Chrome, Opera, and Safari
              xmlhttp = new XMLHttpRequest();
            }
            else
            {
                // Code for Internet Explorer 6 and Internet Explorer 5
                xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
            }
            xmlhttp.onreadystatechange=function()
            {
                if (xmlhttp.readyState==4 && xmlhttp.status==200)
                {
                    document.getElementById("myDiv").innerHTML = xmlhttp.responseText;
                }
            }
            xmlhttp.open("GET", "ajax_info.txt", true);
            xmlhttp.send();
        }
    </script>
</head>

<body>
    <div id="myDiv"><h2>Let AJAX change this text</h2></div>
    <button type="button" onclick="loadXMLDoc()">Change Content</button>
</body>

</html>

You can use script like this for mac:

for f in $(curl -s -l -u user:pass ftp://your_ftp_server_ip/folder/) 
 do curl -O -u user:pass ftp://your_ftp_server_ip/folder/$f 
done

Adding to slebetman's answer for more clarity on what happens while executing the code.

The internal thread pool in nodeJs just has 4 threads by default. and its not like the whole request is attached to a new thread from the thread pool the whole execution of request happens just like any normal request (without any blocking task) , just that whenever a request has any long running or a heavy operation like db call ,a file operation or a http request the task is queued to the internal thread pool which is provided by libuv. And as nodeJs provides 4 threads in internal thread pool by default every 5th or next concurrent request waits until a thread is free and once these operations are over the callback is pushed to the callback queue. and is picked up by event loop and sends back the response.

Now here comes another information that its not once single callback queue, there are many queues.

1. NextTick queue
2. Micro task queue
3. Timers Queue
4. IO callback queue (Requests, File ops, db ops)
5. IO Poll queue
6. Check Phase queue or SetImmediate
7. close handlers queue

Whenever a request comes the code gets executing in this order of callbacks queued.

It is not like when there is a blocking request it is attached to a new thread. There are only 4 threads by default. So there is another queueing happening there.

Whenever in a code a blocking process like file read occurs , then calls a function which utilises thread from thread pool and then once the operation is done , the callback is passed to the respective queue and then executed in the order.

Everything gets queued based on the the type of callback and processed in the order mentioned above.

I am wondering which one of these is better in practice and why?

I've found that Lock and Condition (and other new concurrent classes) are just more tools for the toolbox. I could do most everything I needed with my old claw hammer (the synchronized keyword), but it was awkward to use in some situations. Several of those awkward situations became much simpler once I added more tools to my toolbox: a rubber mallet, a ball-peen hammer, a prybar, and some nail punches. However, my old claw hammer still sees its share of use.

I don't think one is really "better" than the other, but rather each is a better fit for different problems. In a nutshell, the simple model and scope-oriented nature of synchronized helps protect me from bugs in my code, but those same advantages are sometimes hindrances in more complex scenarios. Its these more complex scenarios that the concurrent package was created to help address. But using this higher level constructs requires more explicit and careful management in the code.

===

I think the JavaDoc does a good job of describing the distinction between Lock and synchronized (the emphasis is mine):

Lock implementations provide more extensive locking operations than can be obtained using synchronized methods and statements. They allow more flexible structuring, may have quite different properties, and may support multiple associated Condition objects.

...

The use of synchronized methods or statements provides access to the implicit monitor lock associated with every object, but forces all lock acquisition and release to occur in a block-structured way: when multiple locks are acquired they must be released in the opposite order, and all locks must be released in the same lexical scope in which they were acquired.

While the scoping mechanism for synchronized methods and statements makes it much easier to program with monitor locks, and helps avoid many common programming errors involving locks, there are occasions where you need to work with locks in a more flexible way. For example, **some algorithms* for traversing concurrently accessed data structures require the use of "hand-over-hand" or "chain locking": you acquire the lock of node A, then node B, then release A and acquire C, then release B and acquire D and so on. Implementations of the Lock interface enable the use of such techniques by allowing a lock to be acquired and released in different scopes, and allowing multiple locks to be acquired and released in any order.

With this increased flexibility comes additional responsibility. The absence of block-structured locking removes the automatic release of locks that occurs with synchronized methods and statements. In most cases, the following idiom should be used:

...

When locking and unlocking occur in different scopes, care must be taken to ensure that all code that is executed while the lock is held is protected by try-finally or try-catch to ensure that the lock is released when necessary.

Lock implementations provide additional functionality over the use of synchronized methods and statements by providing a non-blocking attempt to acquire a lock (tryLock()), an attempt to acquire the lock that can be interrupted (lockInterruptibly(), and an attempt to acquire the lock that can timeout (tryLock(long, TimeUnit)).

...

I recently purchased a MacBook Air (mid-2011 model) and was really happy to find that Apple officially supports Windows 7. If you purchase Windows 7 (I got DSP), you can use the Boot Camp assistant in OSX to designate part of your hard drive to Windows. Then you can install and run Windows 7 natively as if it were as Windows notebook.

I use Visual Studio 2010 on Windows 7 on my MacBook Air (I kept OSX as well) and I could not be happier. Heck, the initial start-up of the program only takes 3 seconds thanks to the SSD.

As others have mentions, you can run it on OSX using Parallels, etc. but I prefer to run it natively.

Unless you are subtracting dates on same browser client and don't care about edge cases like day light saving time changes, you are probably better off using moment.js which offers powerful localized APIs. For example, this is what I have in my utils.js:

subtractDates: function(date1, date2) {
    return moment.subtract(date1, date2).milliseconds();
},
millisecondsSince: function(dateSince) {
    return moment().subtract(dateSince).milliseconds();
},

If you feel like having a simple gui to fix this (as I do), then I can recommend the mongodb pref-pane. Description: https://www.mongodb.com/blog/post/macosx-preferences-pane-for-mongodb

On github: https://github.com/remysaissy/mongodb-macosx-prefspane

Right, click on the project. Go to Maven -> Update Project.

The dependencies will automatically be installed.

You have to edit httpd.conf and find this line: Listen 127.0.0.1:80

Then write down your desired IP you set for LAN. Don't use automatic IP.
e.g.: Listen 192.168.137.1:80

I used 192.167.137.1 as my LAN IP of Windows 7. Restart Apache and enjoy sharing.

'a' in x

and a quick search reveals some nice information about it: http://docs.python.org/3/tutorial/datastructures.html#dictionaries

When you do self.button = Button(...).grid(...), what gets assigned to self.button is the result of the grid() command, not a reference to the Button object created.

You need to assign your self.button variable before packing/griding it. It should look something like this:

self.button = Button(self,text="Click Me",command=self.color_change,bg="blue")
self.button.grid(row = 2, column = 2, sticky = W)

This example program illustrates initialization of an array of C strings.

#include <stdio.h>

const char * array[] = {
    "First entry",
    "Second entry",
    "Third entry",
};

#define n_array (sizeof (array) / sizeof (const char *))

int main ()
{
    int i;

    for (i = 0; i < n_array; i++) {
        printf ("%d: %s\n", i, array[i]);
    }
    return 0;
}

It prints out the following:

0: First entry
1: Second entry
2: Third entry

As others have noted, distutils.sysconfig has the relevant settings:

import distutils.sysconfig
print distutils.sysconfig.get_python_lib()

...though the default site.py does something a bit more crude, paraphrased below:

import sys, os
print os.sep.join([sys.prefix, 'lib', 'python' + sys.version[:3], 'site-packages'])

(it also adds ${sys.prefix}/lib/site-python and adds both paths for sys.exec_prefix as well, should that constant be different).

That said, what's the context? You shouldn't be messing with your site-packages directly; setuptools/distutils will work for installation, and your program may be running in a virtualenv where your pythonpath is completely user-local, so it shouldn't assume use of the system site-packages directly either.

I came across this PHP diff class by Chris Boulton based on Python difflib which could be a good solution:

PHP Diff Lib

you can also use:

pip install package==0.5.*

which is more consistent and easy to read.

You can also call cancelAll on the notification manager, so you don't even have to worry about the notification ids.

NotificationManager notifManager= (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
notifManager.cancelAll();

EDIT : I was downvoted so maybe I should specify that this will only remove the notification from your application.

You could use asprintf to concatenate both into a new string:

char *new_str;
asprintf(&new_str,"%s%s",str1,str2);

This is not a system font. this font is not supported in other systems. you can use font-face, convert font from this Site or from this

In pure Javascript:

var genders = document.getElementsByName("gender");
var selectedGender;

for(var i = 0; i < genders.length; i++) {
   if(genders[i].checked)
       selectedGender = genders[i].value;
 }

update

In pure Javascript without loop, using newer (and potentially not-yet-supported) RadioNodeList :

var form_elements = document.getElementById('my_form').elements;
var selectedGender = form_elements['gender'].value;

The only catch is that RadioNodeList is only returned by the HTMLFormElement.elements or HTMLFieldSetElement.elements property, so you have to have some identifier for the form or fieldset that the radio inputs are wrapped in to grab it first.

Actually an other way to solve this could be, overwriting the CSS with insertRule.

It gives the ability to inject CSS rules to an existing/new stylesheet. In my concrete example it would look like this:

//creates a new `style` element in the document
var sheet = (function(){
  var style = document.createElement("style");
  // WebKit hack :(
  style.appendChild(document.createTextNode(""));
  // Add the <style> element to the page
  document.head.appendChild(style);
  return style.sheet;
})();

//add the actual rules to it
sheet.insertRule(
 "ul#mainFilter a:hover { color: #0000EE }" , 0
);

Demo with my 4 years old original example: http://jsfiddle.net/raPeX/21/

Update: Chrome 58+ hid these and other debug messages by default. To display them click the arrow next to 'Info' and select 'Verbose'.

Chrome 57 turned on 'hide violations' by default. To turn them back on you need to enable filters and uncheck the 'hide violations' box.

suddenly it appears when someone else involved in the project

I think it's more likely you updated to Chrome 56. This warning is a wonderful new feature, in my opinion, please only turn it off if you're desperate and your assessor will take marks away from you. The underlying problems are there in the other browsers but the browsers just aren't telling you there's a problem. The Chromium ticket is here but there isn't really any interesting discussion on it.

These messages are warnings instead of errors because it's not really going to cause major problems. It may cause frames to get dropped or otherwise cause a less smooth experience.

They're worth investigating and fixing to improve the quality of your application however. The way to do this is by paying attention to what circumstances the messages appear, and doing performance testing to narrow down where the issue is occurring. The simplest way to start performance testing is to insert some code like this:

function someMethodIThinkMightBeSlow() {
    const startTime = performance.now();

    // Do the normal stuff for this function

    const duration = performance.now() - startTime;
    console.log(`someMethodIThinkMightBeSlow took ${duration}ms`);
}

If you want to get more advanced, you could also use Chrome's profiler, or make use of a benchmarking library like this one.

Once you've found some code that's taking a long time (50ms is Chrome's threshold), you have a couple of options:

1. Cut out some/all of that task that may be unnecessary
2. Figure out how to do the same task faster
3. Divide the code into multiple asynchronous steps

(1) and (2) may be difficult or impossible, but it's sometimes really easy and should be your first attempts. If needed, it should always be possible to do (3). To do this you will use something like:

setTimeout(functionToRunVerySoonButNotNow);

or

// This one is not available natively in IE, but there are polyfills available.
Promise.resolve().then(functionToRunVerySoonButNotNow);

You can read more about the asynchronous nature of JavaScript here.

http://www.browserstack.com

It really works great, but you only have 30 minutes/month for free.

For 19$/month you have unlimited time.

The runas command does not allow a password on its command line. This is by design (and also the reason you cannot pipe a password to it as input). Raymond Chen says it nicely:

The RunAs program demands that you type the password manually. Why doesn't it accept a password on the command line?

This was a conscious decision. If it were possible to pass the password on the command line, people would start embedding passwords into batch files and logon scripts, which is laughably insecure.

In other words, the feature is missing to remove the temptation to use the feature insecurely.

this work for me:-

String[] array = {"A", "B", "C"};
String abc = "";


Spinner spinner = new Spinner(getContext());
ArrayAdapter<String> spinnerArrayAdapter = new ArrayAdapter<String>(getContext(), android.R.layout.simple_spinner_item, array); //selected item will look like a spinner set from XML
spinnerArrayAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(spinnerArrayAdapter);

I am using a Fragment.

First create a method :

public void hideNavigationBar() {
        final View decorView = this.getWindow().getDecorView();
        final int uiOptions =
                View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                        | View.SYSTEM_UI_FLAG_FULLSCREEN
                        | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                        | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                        | View.SYSTEM_UI_FLAG_LAYOUT_STABLE;

        Timer timer = new Timer();
        TimerTask task = new TimerTask() {
            @Override
            public void run() {
                YourActivityName.this.runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        decorView.setSystemUiVisibility(uiOptions);

                    }
                });
            }
        };

        timer.scheduleAtFixedRate(task, 1, 2);

    }

Then you call it on onCreate() method of your activity. Call it again on the onResume() method. Then you may add another method in your activity like this:

@Override
    public void onWindowFocusChanged(boolean hasFocus) {
        super.onWindowFocusChanged(hasFocus);
        hideNavigationBar();
    }

That will be it. Do remember it will lock the screen till the next time user touches the screen, in Timer class you can change the delay and it will allow you change things for that instance.Then it will lock the screen again.

<script>
var deg = 0

function rotate(id)
{
    deg = deg+45;
    var txt = 'rotate('+deg+'deg)';
    $('#'+id).css('-webkit-transform',txt);
}
</script>

What I do is something very easy... declare a global variable at the start... and then increment the variable however much I like, and use .css of jquery to increment.

Since Apple has now clarified that static struct variables are initialized both lazy and wrapped in dispatch_once (see the note at the end of the post), I think my final solution is going to be:

class WithSingleton {
    class var sharedInstance: WithSingleton {
        struct Singleton {
            static let instance = WithSingleton()
        }

        return Singleton.instance
    }
}

This takes advantage of the automatic lazy, thread-safe initialization of static struct elements, safely hides the actual implementation from the consumer, keeps everything compactly compartmentalized for legibility, and eliminates a visible global variable.

Apple has clarified that lazy initializer are thread-safe, so there's no need for dispatch_once or similar protections

The lazy initializer for a global variable (also for static members of structs and enums) is run the first time that global is accessed, and is launched as dispatch_once to make sure that the initialization is atomic. This enables a cool way to use dispatch_once in your code: just declare a global variable with an initializer and mark it private.

From here

A answer for those using ExpandableListView and run into this question based on it's title.

I had this error attempting to work with TextViews in my child and group views as part of an ExpandableListView implementation.

You can use something like the following in your implementations of the getChildView() and getGroupView() methods.

        if (convertView == null) {
            LayoutInflater inflater =  (LayoutInflater) myContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = inflater.inflate(R.layout.child_layout, null);
        }

I found this here.

For me / had to be in a new line.

For example

create type emp_t;/

didn't work

but

create type emp_t;

/

worked.

To find "javaw.exe" in windows I would use (using batch)

for /f tokens^=2^ delims^=^" %%i in ('reg query HKEY_CLASSES_ROOT\jarfile\shell\open\command /ve') do set JAVAW_PATH=%%i

It should work in Windows XP and Seven, for JRE 1.6 and 1.7. Should catch the latest installed version.

This is a pretty clean way to do it:

myStr = ("firstPartOfMyString"+
         "secondPartOfMyString"+
         "thirdPartOfMyString")

If you're running SQL Server 2005 or 2008, you could use the DMV's to find this...

SELECT  *
FROM    sys.dm_exec_requests  
        CROSS APPLY sys.dm_exec_sql_text(sql_handle)  

• More about sys.dm_exec_requests
• More about sys.dm_exec_sql_text

If you want to do it via setAttribute you would change the style attribute like so:

element.setAttribute('style','transform:rotate(90deg); -webkit-transform: rotate(90deg)') //etc

This would be helpful if you want to reset all other inline style and only set your needed style properties' values again, BUT in most cases you may not want that. That's why everybody advised to use this:

element.style.transform = 'rotate(90deg)';
element.style.webkitTransform = 'rotate(90deg)';

The above is equivalent to

element.style['transform'] = 'rotate(90deg)';
element.style['-webkit-transform'] = 'rotate(90deg)';

The CURL extension ext/curl is not installed or enabled in your PHP installation. Check the manual for information on how to install or enable CURL on your system.

Unfortunately, none of the answers to this question takes into account some valid HTTP_ACCEPT_LANGUAGE such as:

• q=0.8,en-US;q=0.5,en;q=0.3: having the q priority value at first place.
• ZH-CN: old browsers that capitalise (wrongly) the whole langcode.
• *: that basically say "serve whatever language you have".

After a comprehensive test with thousands of different Accept-Languages in my server, I ended up having this language detection method:

define('SUPPORTED_LANGUAGES', ['en', 'es']);

function detect_language() {
    foreach (preg_split('/[;,]/', $_SERVER['HTTP_ACCEPT_LANGUAGE']) as $sub) {
        if (substr($sub, 0, 2) == 'q=') continue;
        if (strpos($sub, '-') !== false) $sub = explode('-', $sub)[0];
        if (in_array(strtolower($sub), SUPPORTED_LANGUAGES)) return $sub;
    }
    return 'en';
}

More accurately anything that is not 0 is true.

So 1 is true, but so is 2, 3 ... etc.

I think all these answers are missing the question. The problem was to "Round UP", not just "Round". It is my understanding that Round Up means that ANY fractional value about a whole digit rounds up to the next WHOLE digit. ie: 48.0000000 = 48 but 25.00001 = 26. Is this not the definition of rounding up? (or have my past 60 years in accounting been misplaced?

1. In devDependencies typescript is 1.7.3 but you have 1.7.5 fix common one.
2. Import your js files in the correct order in index.html. for more info refer this repository https://github.com/pkozlowski-opensource/ng2-play/blob/master/index.html or refer to my repository here

   https://github.com/MrPardeep/Angular2-DatePicker

index.html

<script src="node_modules/angular2/bundles/angular2-polyfills.js"></script>
    <script src="node_modules/es6-shim/es6-shim.min.js"></script>
    <script src="node_modules/systemjs/dist/system.src.js"></script>

    <script>
        System.config({
                    defaultJSExtensions: true,
                    map: {
                        rxjs: 'node_modules/rxjs'
                    },
                    packages: {
                        rxjs: {
                        defaultExtension: 'js'
                      }
                    }
                });
    </script>
    <script src="node_modules/angular2/bundles/angular2.dev.js"></script>
    <script src="node_modules/rxjs/bundles/Rx.js"></script>
    <script src="node_modules/angular2/bundles/router.dev.js"></script>
    <script src="node_modules/angular2/bundles/http.dev.js"></script>

<script>
    System.import('dist/bootstrap');
</script> 

The easiest way is to use a JsonResponse.

For a queryset, you should pass a list of the the values for that queryset, like so:

from django.http import JsonResponse

queryset = YourModel.objects.filter(some__filter="some value").values()
return JsonResponse({"models_to_return": list(queryset)})

The solution for string values is really weird:

.OrderBy(f => f.SomeString == null).ThenBy(f => f.SomeString) 

The only reason that works is because the first expression, OrderBy(), sort bool values: true/false. false result go first follow by the true result (nullables) and ThenBy() sort the non-null values alphabetically.

e.g.: [null, "coconut", null, "apple", "strawberry"]
First sort: ["coconut", "apple", "strawberry", null, null]
Second sort: ["apple", "coconut", "strawberry", null, null]

.OrderBy(f => f.SomeString ?? "z")

public static class MyExtensions
{
    public static IOrderedEnumerable<T> NullableOrderBy<T>(this IEnumerable<T> list, Func<T, string> keySelector)
    {
        return list.OrderBy(v => keySelector(v) != null ? 0 : 1).ThenBy(keySelector);
    }
}

var sortedList = list.NullableOrderBy(f => f.SomeString);

Here is a code that works for me, which is a part from the website above combined with my early trials: http://www.codeproject.com/KB/system/DriveDetector.aspx

This basically makes your form listen to windows messages, filters for usb drives and (cd-dvds), grabs the lparam structure of the message and extracts the drive letter.

protected override void WndProc(ref Message m)
    {

        if (m.Msg == WM_DEVICECHANGE)
        {
            DEV_BROADCAST_VOLUME vol = (DEV_BROADCAST_VOLUME)Marshal.PtrToStructure(m.LParam, typeof(DEV_BROADCAST_VOLUME));
            if ((m.WParam.ToInt32() == DBT_DEVICEARRIVAL) &&  (vol.dbcv_devicetype == DBT_DEVTYPVOLUME) )
            {
                MessageBox.Show(DriveMaskToLetter(vol.dbcv_unitmask).ToString());
            }
            if ((m.WParam.ToInt32() == DBT_DEVICEREMOVALCOMPLETE) && (vol.dbcv_devicetype == DBT_DEVTYPVOLUME))
            {
                MessageBox.Show("usb out");
            }
        }
        base.WndProc(ref m);
    }

    [StructLayout(LayoutKind.Sequential)] //Same layout in mem
    public struct DEV_BROADCAST_VOLUME
    {
        public int dbcv_size;
        public int dbcv_devicetype;
        public int dbcv_reserved;
        public int dbcv_unitmask;
    }

    private static char DriveMaskToLetter(int mask)
    {
        char letter;
        string drives = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; //1 = A, 2 = B, 3 = C
        int cnt = 0;
        int pom = mask / 2;
        while (pom != 0)    // while there is any bit set in the mask shift it right        
        {        
            pom = pom / 2;
            cnt++;
        }
        if (cnt < drives.Length)
            letter = drives[cnt];
        else
            letter = '?';
        return letter;
    }

Do not forget to add this:

using System.Runtime.InteropServices;

and the following constants:

    const int WM_DEVICECHANGE = 0x0219; //see msdn site
    const int DBT_DEVICEARRIVAL = 0x8000;
    const int DBT_DEVICEREMOVALCOMPLETE = 0x8004;
    const int DBT_DEVTYPVOLUME = 0x00000002;  

"Allocation Failure" is a cause of GC cycle to kick in.

"Allocation Failure" means that no more space left in Eden to allocate object. So, it is normal cause of young GC.

Older JVM were not printing GC cause for minor GC cycles.

"Allocation Failure" is almost only possible cause for minor GC. Another reason for minor GC to kick could be CMS remark phase (if +XX:+ScavengeBeforeRemark is enabled).

Here's an attempt which tries to avoid killing a process after it has already exited, which reduces the chance of killing another process with the same process ID (although it's probably impossible to avoid this kind of error completely).

run_with_timeout ()
{
  t=$1
  shift

  echo "running \"$*\" with timeout $t"

  (
  # first, run process in background
  (exec sh -c "$*") &
  pid=$!
  echo $pid

  # the timeout shell
  (sleep $t ; echo timeout) &
  waiter=$!
  echo $waiter

  # finally, allow process to end naturally
  wait $pid
  echo $?
  ) \
  | (read pid
     read waiter

     if test $waiter != timeout ; then
       read status
     else
       status=timeout
     fi

     # if we timed out, kill the process
     if test $status = timeout ; then
       kill $pid
       exit 99
     else
       # if the program exited normally, kill the waiting shell
       kill $waiter
       exit $status
     fi
  )
}

Use like run_with_timeout 3 sleep 10000, which runs sleep 10000 but ends it after 3 seconds.

This is like other answers which use a background timeout process to kill the child process after a delay. I think this is almost the same as Dan's extended answer (https://stackoverflow.com/a/5161274/1351983), except the timeout shell will not be killed if it has already ended.

After this program has ended, there will still be a few lingering "sleep" processes running, but they should be harmless.

This may be a better solution than my other answer because it does not use the non-portable shell feature read -t and does not use pgrep.

Note that I don't recommend a fixed IP for containers in Docker unless you're doing something that allows routing from outside to the inside of your container network (e.g. macvlan). DNS is already there for service discovery inside of the container network and supports container scaling. And outside the container network, you should use exposed ports on the host. With that disclaimer, here's the compose file you want:

version: '2'

services:
  mysql:
    container_name: mysql
    image: mysql:latest
    restart: always
    environment:
      - MYSQL_ROOT_PASSWORD=root
    ports:
     - "3306:3306"
    networks:
      vpcbr:
        ipv4_address: 10.5.0.5

  apigw-tomcat:
    container_name: apigw-tomcat
    build: tomcat/.
    ports:
     - "8080:8080"
     - "8009:8009"
    networks:
      vpcbr:
        ipv4_address: 10.5.0.6
    depends_on:
     - mysql

networks:
  vpcbr:
    driver: bridge
    ipam:
     config:
       - subnet: 10.5.0.0/16
         gateway: 10.5.0.1

Everyone is right: stick with POST for non-idempotent requests.

What about using both an URI query string and request content? Well it's valid HTTP (see note 1), so why not?!

It is also perfectly logical: URLs, including their query string part, are for locating resources. Whereas HTTP method verbs (POST - and its optional request content) are for specifying actions, or what to do with resources. Those should be orthogonal concerns. (But, they are not beautifully orthogonal concerns for the special case of ContentType=application/x-www-form-urlencoded, see note 2 below.)

Note 1: HTTP specification (1.1) does not state that query parameters and content are mutually exclusive for a HTTP server that accepts POST or PUT requests. So any server is free to accept both. I.e. if you write the server there's nothing to stop you choosing to accept both (except maybe an inflexible framework). Generally, the server can interpret query strings according to whatever rules it wants. It can even interpret them with conditional logic that refers to other headers like Content-Type too, which leads to Note 2:

Note 2: if a web browser is the primary way people are accessing your web application, and application/x-www-form-urlencoded is the Content-Type they are posting, then you should follow the rules for that Content-Type. And the rules for application/x-www-form-urlencoded are much more specific (and frankly, unusual): in this case you must interpret the URI as a set of parameters, and not a resource location. [This is the same point of usefulness Powerlord raised; that it may be hard to use web forms to POST content to your server. Just explained a little differently.]

Note 3: what are query strings originally for? RFC 3986 defines HTTP query strings as an URI part that works as a non-hierarchical way of locating a resource.

In case readers asking this question wish to ask what is good RESTful architecture: the RESTful architecture pattern doesn't require URI schemes to work a specific way. RESTful architecture concerns itself with other properties of the system, like cacheability of resources, the design of the resources themselves (their behavior, capabilities, and representations), and whether idempotence is satisfied. Or in other words, achieving a design which is highly compatible with HTTP protocol and its set of HTTP method verbs. :-) (In other words, RESTful architecture is not very presciptive with how the resources are located.)

Final note: sometimes query parameters get used for yet other things, which are neither locating resources nor encoding content. Ever seen a query parameter like 'PUT=true' or 'POST=true'? These are workarounds for browsers that don't allow you to use PUT and POST methods. While such parameters are seen as part of the URL query string (on the wire), I argue that they are not part of the URL's query in spirit.

You didn't open the file in binary mode.

open("Fruits.obj",'rb')

Should work.

For your second error, the file is most likely empty, which mean you inadvertently emptied it or used the wrong filename or something.

(This is assuming you really did close your session. If not, then it's because you didn't close the file between the write and the read).

I tested your code, and it works.

While only a few lines are required to plot multiple/overlapping histograms in ggplot2, the results are't always satisfactory. There needs to be proper use of borders and coloring to ensure the eye can differentiate between histograms.

The following functions balance border colors, opacities, and superimposed density plots to enable the viewer to differentiate among distributions.

Single histogram:

plot_histogram <- function(df, feature) {
    plt <- ggplot(df, aes(x=eval(parse(text=feature)))) +
    geom_histogram(aes(y = ..density..), alpha=0.7, fill="#33AADE", color="black") +
    geom_density(alpha=0.3, fill="red") +
    geom_vline(aes(xintercept=mean(eval(parse(text=feature)))), color="black", linetype="dashed", size=1) +
    labs(x=feature, y = "Density")
    print(plt)
}

Multiple histogram:

plot_multi_histogram <- function(df, feature, label_column) {
    plt <- ggplot(df, aes(x=eval(parse(text=feature)), fill=eval(parse(text=label_column)))) +
    geom_histogram(alpha=0.7, position="identity", aes(y = ..density..), color="black") +
    geom_density(alpha=0.7) +
    geom_vline(aes(xintercept=mean(eval(parse(text=feature)))), color="black", linetype="dashed", size=1) +
    labs(x=feature, y = "Density")
    plt + guides(fill=guide_legend(title=label_column))
}

Usage:

Simply pass your data frame into the above functions along with desired arguments:

plot_histogram(iris, 'Sepal.Width')

plot_multi_histogram(iris, 'Sepal.Width', 'Species')

The extra parameter in plot_multi_histogram is the name of the column containing the category labels.

We can see this more dramatically by creating a dataframe with many different distribution means:

a <-data.frame(n=rnorm(1000, mean = 1), category=rep('A', 1000))
b <-data.frame(n=rnorm(1000, mean = 2), category=rep('B', 1000))
c <-data.frame(n=rnorm(1000, mean = 3), category=rep('C', 1000))
d <-data.frame(n=rnorm(1000, mean = 4), category=rep('D', 1000))
e <-data.frame(n=rnorm(1000, mean = 5), category=rep('E', 1000))
f <-data.frame(n=rnorm(1000, mean = 6), category=rep('F', 1000))
many_distros <- do.call('rbind', list(a,b,c,d,e,f))

Passing data frame in as before (and widening chart using options):

options(repr.plot.width = 20, repr.plot.height = 8)
plot_multi_histogram(many_distros, 'n', 'category')

This works for me: $('#profile1').attr('onclick')