I've created a simple library for handling optional arguments with JavaScript functions, see https://github.com/ovatto/argShim. The library is developed with Node.js in mind but should be easily ported to work with e.g. browsers.

Example:

var argShim = require('argShim');
var defaultOptions = {
  myOption: 123
};

var my_function = argShim([
    {optional:'String'},
    {optional:'Object',default:defaultOptions}
  ], function(content, options) {
    console.log("content:", content, "options:", options);
  });

my_function();
my_function('str');
my_function({myOption:42});
my_function('str', {myOption:42});

Output:

content: undefined options: { myOption: 123 }
content: str options: { myOption: 123 }
content: undefined options: { myOption: 42 }
content: str options: { myOption: 42 }

The main target for the library are module interfaces where you need to be able to handle different invocations of exported module functions.

Using Postman for Chrome, selecting CODE you get this... And works

<?php_x000D_
_x000D_
$curl = curl_init();_x000D_
_x000D_
curl_setopt_array($curl, array(_x000D_
  CURLOPT_URL => "https://blablabla.com/comorl",_x000D_
  CURLOPT_RETURNTRANSFER => true,_x000D_
  CURLOPT_ENCODING => "",_x000D_
  CURLOPT_MAXREDIRS => 10,_x000D_
  CURLOPT_TIMEOUT => 30,_x000D_
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,_x000D_
  CURLOPT_CUSTOMREQUEST => "PUT",_x000D_
  CURLOPT_POSTFIELDS => "{\n  \"customer\" : \"con\",\n  \"customerID\" : \"5108\",\n  \"customerEmail\" : \"[email protected]\",\n  \"Phone\" : \"34600000000\",\n  \"Active\" : false,\n  \"AudioWelcome\" : \"https://audio.com/welcome-defecto-es.mp3\"\n\n}",_x000D_
  CURLOPT_HTTPHEADER => array(_x000D_
    "cache-control: no-cache",_x000D_
    "content-type: application/json",_x000D_
    "x-api-key: whateveriyouneedinyourheader"_x000D_
  ),_x000D_
));_x000D_
_x000D_
$response = curl_exec($curl);_x000D_
$err = curl_error($curl);_x000D_
_x000D_
curl_close($curl);_x000D_
_x000D_
if ($err) {_x000D_
  echo "cURL Error #:" . $err;_x000D_
} else {_x000D_
  echo $response;_x000D_
}_x000D_
_x000D_
?>

Another elegant solution to the first question may be the insert command:

p = np.array([[1,2],[3,4]])
p = np.insert(p, 2, values=0, axis=1) # insert values before column 2

Leads to:

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

insert may be slower than append but allows you to fill the whole row/column with one value easily.

As for the second question, delete has been suggested before:

p = np.delete(p, 2, axis=1)

Which restores the original array again:

array([[1, 2],
       [3, 4]])

Here's a combination of some of these answers. This can be used for input fields. Deals with phone numbers that are 7 and 10 digits long.

// Used to format phone number
function phoneFormatter() {
  $('.phone').on('input', function() {
    var number = $(this).val().replace(/[^\d]/g, '')
    if (number.length == 7) {
      number = number.replace(/(\d{3})(\d{4})/, "$1-$2");
    } else if (number.length == 10) {
      number = number.replace(/(\d{3})(\d{3})(\d{4})/, "($1) $2-$3");
    }
    $(this).val(number)
  });
}

Live example: JSFiddle

I know this doesn't directly answer the question, but when I was looking up answers this was one of the first pages I found. So this answer is for anyone searching for something similar to what I was searching for.

Type-safe JSON.parse

You can continue to use JSON.parse, as TS is a JS superset. There is still a problem left: JSON.parse returns any, which undermines type safety. Here are two options for stronger types:

1. User-defined type guards (playground)

Custom type guards are the simplest solution and often sufficient for external data validation:

// For example, you expect to parse a given value with `MyType` shape
type MyType = { name: string; description: string; }

// Validate this value with a custom type guard
function isMyType(o: any): o is MyType {
  return "name" in o && "description" in o
}

A JSON.parse wrapper can then take a type guard as input and return the parsed, typed value:

const safeJsonParse = <T>(guard: (o: any) => o is T) => (text: string): ParseResult<T> => {
  const parsed = JSON.parse(text)
  return guard(parsed) ? { parsed, hasError: false } : { hasError: true }
}

type ParseResult<T> =
  | { parsed: T; hasError: false; error?: undefined }
  | { parsed?: undefined; hasError: true; error?: unknown }

const json = '{ "name": "Foo", "description": "Bar" }';
const result = safeJsonParse(isMyType)(json) // result: ParseResult<MyType>
if (result.hasError) {
  console.log("error :/")  // further error handling here
} else {
  console.log(result.parsed.description) // result.parsed now has type `MyType`
}

safeJsonParse might be extended to fail fast or try/catch JSON.parse errors.

2. External libraries

Writing type guard functions manually becomes cumbersome, if you need to validate many different values. There are libraries to assist with this task - examples (no comprehensive list):

• io-ts: rel. popular (3.2k stars currently), fp-ts peer dependency, functional programming style
• zod: quite new (repo: 2020-03-07), strives to be more procedural/object-oriented than io-ts
• typescript-is: TS transformer for compiler API, additional wrapper like ttypescript needed
• typescript-json-schema/ajv: Create JSON schema from types and validate it with ajv

More infos

• Runtime type checking #1573
• Interface type check with Typescript
• TypeScript: validating external data

from functools import reduce

def factors(n):    
    return set(reduce(list.__add__, 
                ([i, n//i] for i in range(1, int(n**0.5) + 1) if n % i == 0)))

This will return all of the factors, very quickly, of a number n.

Why square root as the upper limit?

sqrt(x) * sqrt(x) = x. So if the two factors are the same, they're both the square root. If you make one factor bigger, you have to make the other factor smaller. This means that one of the two will always be less than or equal to sqrt(x), so you only have to search up to that point to find one of the two matching factors. You can then use x / fac1 to get fac2.

The reduce(list.__add__, ...) is taking the little lists of [fac1, fac2] and joining them together in one long list.

The [i, n/i] for i in range(1, int(sqrt(n)) + 1) if n % i == 0 returns a pair of factors if the remainder when you divide n by the smaller one is zero (it doesn't need to check the larger one too; it just gets that by dividing n by the smaller one.)

The set(...) on the outside is getting rid of duplicates, which only happens for perfect squares. For n = 4, this will return 2 twice, so set gets rid of one of them.

Similarly along the lines of these answers written as a plugin:

$.fn.sum = function () {
    var sum = 0;
    this.each(function () {
        sum += 1*($(this).val());
    });
    return sum;
};

For the record 1 * x is faster than Number(x) in Chrome

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.IO;

namespace WebserverInteractionClassLibrary
{
    public class RequestManager
    {
        public string LastResponse { protected set; get; }

        CookieContainer cookies = new CookieContainer();

        internal string GetCookieValue(Uri SiteUri,string name)
        {
            Cookie cookie = cookies.GetCookies(SiteUri)[name];
            return (cookie == null) ? null : cookie.Value;
        }

        public string GetResponseContent(HttpWebResponse response)
        {
            if (response == null)
            {
                throw new ArgumentNullException("response");
            }
            Stream dataStream = null;
            StreamReader reader = null;
            string responseFromServer = null;

            try
            {
                // Get the stream containing content returned by the server.
                dataStream = response.GetResponseStream();
                // Open the stream using a StreamReader for easy access.
                reader = new StreamReader(dataStream);
                // Read the content.
                responseFromServer = reader.ReadToEnd();
                // Cleanup the streams and the response.
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
            finally
            {                
                if (reader != null)
                {
                    reader.Close();
                }
                if (dataStream != null)
                {
                    dataStream.Close();
                }
                response.Close();
            }
            LastResponse = responseFromServer;
            return responseFromServer;
        }

        public HttpWebResponse SendPOSTRequest(string uri, string content, string login, string password, bool allowAutoRedirect)
        {
            HttpWebRequest request = GeneratePOSTRequest(uri, content, login, password, allowAutoRedirect);
            return GetResponse(request);
        }

        public HttpWebResponse SendGETRequest(string uri, string login, string password, bool allowAutoRedirect)
        {
            HttpWebRequest request = GenerateGETRequest(uri, login, password, allowAutoRedirect);
            return GetResponse(request);
        }

        public HttpWebResponse SendRequest(string uri, string content, string method, string login, string password, bool allowAutoRedirect)
        {
            HttpWebRequest request = GenerateRequest(uri, content, method, login, password, allowAutoRedirect);
            return GetResponse(request);
        }

        public HttpWebRequest GenerateGETRequest(string uri, string login, string password, bool allowAutoRedirect)
        {
            return GenerateRequest(uri, null, "GET", null, null, allowAutoRedirect);
        }

        public HttpWebRequest GeneratePOSTRequest(string uri, string content, string login, string password, bool allowAutoRedirect)
        {
            return GenerateRequest(uri, content, "POST", null, null, allowAutoRedirect);
        }

        internal HttpWebRequest GenerateRequest(string uri, string content, string method, string login, string password, bool allowAutoRedirect)
        {
            if (uri == null)
            {
                throw new ArgumentNullException("uri");
            }
            // Create a request using a URL that can receive a post. 
            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(uri);
            // Set the Method property of the request to POST.
            request.Method = method;
            // Set cookie container to maintain cookies
            request.CookieContainer = cookies;
            request.AllowAutoRedirect = allowAutoRedirect;
            // If login is empty use defaul credentials
            if (string.IsNullOrEmpty(login))
            {
                request.Credentials = CredentialCache.DefaultNetworkCredentials;
            }
            else
            {
                request.Credentials = new NetworkCredential(login, password);
            }
            if (method == "POST")
            {
                // Convert POST data to a byte array.
                byte[] byteArray = Encoding.UTF8.GetBytes(content);
                // Set the ContentType property of the WebRequest.
                request.ContentType = "application/x-www-form-urlencoded";
                // Set the ContentLength property of the WebRequest.
                request.ContentLength = byteArray.Length;
                // Get the request stream.
                Stream dataStream = request.GetRequestStream();
                // Write the data to the request stream.
                dataStream.Write(byteArray, 0, byteArray.Length);
                // Close the Stream object.
                dataStream.Close();
            }
            return request;
        }

        internal HttpWebResponse GetResponse(HttpWebRequest request)
        {
            if (request == null)
            {
                throw new ArgumentNullException("request");
            }
            HttpWebResponse response = null;
            try
            {
                response = (HttpWebResponse)request.GetResponse();                
                cookies.Add(response.Cookies);                
                // Print the properties of each cookie.
                Console.WriteLine("\nCookies: ");
                foreach (Cookie cook in cookies.GetCookies(request.RequestUri))
                {
                    Console.WriteLine("Domain: {0}, String: {1}", cook.Domain, cook.ToString());
                }
            }
            catch (WebException ex)
            {
                Console.WriteLine("Web exception occurred. Status code: {0}", ex.Status);
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
            return response;
        }

    }
}

It's very simple steps to push your node js application from local to GitHub.

Steps:

1. First create a new repository on GitHub
2. Open Git CMD installed to your system (Install GitHub Desktop)
3. Clone the repository to your system with the command: git clone repo-url
4. Now copy all your application files to this cloned library if it's not there
5. Get everything ready to commit: git add -A
6. Commit the tracked changes and prepares them to be pushed to a remote repository: git commit -a -m "First Commit"
7. Push the changes in your local repository to GitHub: git push origin master

Where is this info kept ("this connection is between computer A and server F")?

A TCP connection is recognized by source IP and port and destination IP and port. Your OS, all intermediate session-aware devices and the server's OS will recognize the connection by this.

HTTP works with request-response: client connects to server, performs a request and gets a response. Without keep-alive, the connection to an HTTP server is closed after each response. With HTTP keep-alive you keep the underlying TCP connection open until certain criteria are met.

This allows for multiple request-response pairs over a single TCP connection, eliminating some of TCP's relatively slow connection startup.

When The IIS (F) sends keep alive header (or user sends keep-alive) , does it mean that (E,C,B) save a connection

No. Routers don't need to remember sessions. In fact, multiple TCP packets belonging to same TCP session need not all go through same routers - that is for TCP to manage. Routers just choose the best IP path and forward packets. Keep-alive is only for client, server and any other intermediate session-aware devices.

which is only for my session ?

Does it mean that no one else can use that connection

That is the intention of TCP connections: it is an end-to-end connection intended for only those two parties.

If so - does it mean that keep alive-header - reduce the number of overlapped connection users ?

Define "overlapped connections". See HTTP persistent connection for some advantages and disadvantages, such as:

• Lower CPU and memory usage (because fewer connections are open simultaneously).
• Enables HTTP pipelining of requests and responses.
• Reduced network congestion (fewer TCP connections).
• Reduced latency in subsequent requests (no handshaking).

if so , for how long does the connection is saved to me ? (in other words , if I set keep alive- "keep" till when?)

An typical keep-alive response looks like this:

Keep-Alive: timeout=15, max=100

See Hypertext Transfer Protocol (HTTP) Keep-Alive Header for example (a draft for HTTP/2 where the keep-alive header is explained in greater detail than both 2616 and 2086):

• A host sets the value of the timeout parameter to the time that the host will allows an idle connection to remain open before it is closed. A connection is idle if no data is sent or received by a host.

• The max parameter indicates the maximum number of requests that a client will make, or that a server will allow to be made on the persistent connection. Once the specified number of requests and responses have been sent, the host that included the parameter could close the connection.

However, the server is free to close the connection after an arbitrary time or number of requests (just as long as it returns the response to the current request). How this is implemented depends on your HTTP server.

An enum declares a set of ordered values - the typedef just adds a handy name to this. The 1st element is 0 etc.

typedef enum {
Monday=1,
...
} WORKDAYS;

WORKDAYS today = Monday;

The above is just an enumeration of shapeType tags.

Dynamic SQL PIVOT:

create table temp
(
    date datetime,
    category varchar(3),
    amount money
)

insert into temp values ('1/1/2012', 'ABC', 1000.00)
insert into temp values ('2/1/2012', 'DEF', 500.00)
insert into temp values ('2/1/2012', 'GHI', 800.00)
insert into temp values ('2/10/2012', 'DEF', 700.00)
insert into temp values ('3/1/2012', 'ABC', 1100.00)


DECLARE @cols AS NVARCHAR(MAX),
    @query  AS NVARCHAR(MAX);

SET @cols = STUFF((SELECT distinct ',' + QUOTENAME(c.category) 
            FROM temp c
            FOR XML PATH(''), TYPE
            ).value('.', 'NVARCHAR(MAX)') 
        ,1,1,'')

set @query = 'SELECT date, ' + @cols + ' from 
            (
                select date
                    , amount
                    , category
                from temp
           ) x
            pivot 
            (
                 max(amount)
                for category in (' + @cols + ')
            ) p '


execute(@query)

drop table temp

Results:

Date                        ABC         DEF    GHI
2012-01-01 00:00:00.000     1000.00     NULL    NULL
2012-02-01 00:00:00.000     NULL        500.00  800.00
2012-02-10 00:00:00.000     NULL        700.00  NULL
2012-03-01 00:00:00.000     1100.00     NULL    NULL

where date_dt = to_date(to_char(sysdate-1, 'YYYY-MM-DD') || ' 19:16:08', 'YYYY-MM-DD HH24:MI:SS') 

should work.

Wow! when you use src then src of searchPic must be used also.

document["pic1"].src = searchPic.src

looks better

A Subscription is an object that represents a disposable resource, usually the execution of an Observable. A Subscription has one important method, unsubscribe, that takes no argument and just disposes of the resource held by the subscription.

import { interval } from 'rxjs';

const observable = interval(1000);
const subscription = observable.subscribe(a=> console.log(a));

/** This cancels the ongoing Observable execution which
was started by calling subscribe with an Observer.*/

subscription.unsubscribe();

A Subscription essentially just has an unsubscribe() function to release resources or cancel Observable executions.

import { interval } from 'rxjs';

const observable1 = interval(400);
const observable2 = interval(300);

const subscription = observable1.subscribe(x => console.log('first: ' + x));
const childSubscription = observable2.subscribe(x => console.log('second: ' + x));

subscription.add(childSubscription);

setTimeout(() => {
// It unsubscribes BOTH subscription and childSubscription
subscription.unsubscribe();
}, 1000);

According to the official documentation, Angular should unsubscribe for you, but apparently, there is a bug.

The chosen answer is a great start, but it essentially forces list-style-position: inside; styling on the list items, making wrapped text hard to read. Here's a simple workaround that also gives control over the margin between the number and text, and right-aligns the number as per the default behaviour.

ol {
    counter-reset: item;
}
ol li {
    display: block;
    position: relative;
}
ol li:before {
    content: counters(item, ".")".";
    counter-increment: item;
    position: absolute;
    margin-right: 100%;
    right: 10px; /* space between number and text */
}

JSFiddle: http://jsfiddle.net/3J4Bu/

For from right to left slide

res/anim/in.xml:

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
   android:shareInterpolator="false">
   <translate
    android:fromXDelta="100%" android:toXDelta="0%"
    android:fromYDelta="0%" android:toYDelta="0%"
    android:duration="700" />
</set>

res/anim/out.xml:

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
   android:shareInterpolator="false">
   <translate
    android:fromXDelta="0%" android:toXDelta="-100%"
    android:fromYDelta="0%" android:toYDelta="0%"
    android:duration="700" />
</set>

in Activity Java file:

Intent intent = new Intent(HomeActivity.this, ActivityCapture.class);
startActivity(intent);
overridePendingTransition(R.anim.in,R.anim.out);

you can change the duration times in the xml files for the longer or shorter slide animation.

To make PasswordChar use the ? character instead:

passwordTextBox.PasswordChar = '\u25CF';

Here is a simple trick to remember the difference between slice vs splice

var a=['j','u','r','g','e','n'];

// array.slice(startIndex, endIndex)
a.slice(2,3);
// => ["r"]

//array.splice(startIndex, deleteCount)
a.splice(2,3);
// => ["r","g","e"]

Trick to remember:

Think of "spl" (first 3 letters of splice) as short for "specifiy length", that the second argument should be a length not an index

Now the command is

heroku pg:reset DATABASE_URL --confirm your_app_name

this way you can specify which app's db you want to reset. Then you can run

heroku run rake db:migrate 
heroku run rake db:seed 

or direct for both above commands

heroku run rake db:setup 

And now final step to restart your app

heroku restart

In Typescript and ES6 you can also use for..of:

for (var product of products) {
     console.log(product.product_desc)
}

which will be transcoded to javascript:

for (var _i = 0, products_1 = products; _i < products_1.length; _i++) {
    var product = products_1[_i];
    console.log(product.product_desc);
}

Use Case

$('#myImg').safeUrl({wanted:"http://example/nature.png",rm:"/myproject/images/anonym.png"});

API :

$.fn.safeUrl=function(args){
  var that=this;
  if($(that).attr('data-safeurl') && $(that).attr('data-safeurl') === 'found'){
        return that;
  }else{
       $.ajax({
    url:args.wanted,
    type:'HEAD',
    error:
        function(){
            $(that).attr('src',args.rm)
        },
    success:
        function(){
             $(that).attr('src',args.wanted)
             $(that).attr('data-safeurl','found');
        }
      });
   }


 return that;
};

Note : rm means here risk managment .

Another Use Case :

$('#myImg').safeUrl({wanted:"http://example/1.png",rm:"http://example/2.png"})
.safeUrl({wanted:"http://example/2.png",rm:"http://example/3.png"});

• 'http://example/1.png' : if not exist 'http://example/2.png'

• 'http://example/2.png' : if not exist 'http://example/3.png'

If the browser people see this as a security and/or usability problem, then the answer to your question is to simply not close the window, since by definition they will come up with solutions for your workaround anyway. There is a nice summation about the reasoning why the choice have been in the firefox bug database https://bugzilla.mozilla.org/show_bug.cgi?id=190515#c70

So what can you do?

Change the specification of your website, so that you have a solution for these people. You could for instance take it as an opportunity to direct them to a partner.

That is, see it as a handoff to someone else that (potentially) needs it. As an example, Hanselman had a recent article about what to do in the other similar situation, namely 404 errors: http://www.hanselman.com/blog/PutMissingKidsOnYour404PageEntirelyClientSideSolutionWithYQLJQueryAndMSAjax.aspx

Your code can get messy fast when dealing with CSS3 transitions. I would recommend using a plugin such as jQuery Transit that handles the complexity of CSS3 animations/transitions.

Moreover, the plugin uses webkit-transform rather than webkit-transition, which allows for mobile devices to use hardware acceleration in order to give your web apps that native look and feel when the animations occur.

JS Fiddle Live Demo

Javascript:

$("#startTransition").on("click", function()
{

    if( $(".boxOne").is(":visible")) 
    {
        $(".boxOne").transition({ x: '-100%', opacity: 0.1 }, function () { $(".boxOne").hide(); });
        $(".boxTwo").css({ x: '100%' });
        $(".boxTwo").show().transition({ x: '0%', opacity: 1.0 });
        return;        
    }

    $(".boxTwo").transition({ x: '-100%', opacity: 0.1 }, function () { $(".boxTwo").hide(); });
    $(".boxOne").css({ x: '100%' });
    $(".boxOne").show().transition({ x: '0%', opacity: 1.0 });

});

Most of the hard work of getting cross-browser compatibility is done for you as well and it works like a charm on mobile devices.

Happened to me few times whenever I miss "," between list of injections and function

app.controller('commonCtrl', ['$scope', '$filter',function($scope,$filter) {

}]);

You can do it as follows:

> x<-c(2, 4, 6, 9, 10) # the list
> y<-c(4, 9, 10) # values to be removed

> idx = which(x %in% y ) # Positions of the values of y in x
> idx
[1] 2 4 5
> x = x[-idx] # Remove those values using their position and "-" operator
> x
[1] 2 6

Shortly

> x = x[ - which(x %in% y)]

De Morgan's laws allow us to convert disjunctions ("OR") into logical equivalents using only conjunctions ("AND") and negations ("NOT"). This means we can chain disjunctions ("OR") on to one line.

This means if name is "Yakko" or "Wakko" or "Dot", then echo "Warner brother or sister".

set warner=true
if not "%name%"=="Yakko" if not "%name%"=="Wakko" if not "%name%"=="Dot" set warner=false
if "%warner%"=="true" echo Warner brother or sister

This is another version of paxdiablo's "OR" example, but the conditions are chained on to one line. (Note that the opposite of leq is gtr, and the opposite of geq is lss.)

set res=true
if %hour% gtr 6 if %hour% lss 22 set res=false
if "%res%"=="true" set state=asleep

The short answer is Yes. For more information:

From Wikipedia:

JavaScript is heavily object-based. Objects are associative arrays, augmented with prototypes (see below). Object property names are associative array keys: obj.x = 10 and obj["x"] = 10 are equivalent, the dot notation being merely syntactic sugar. Properties and their values can be added, changed, or deleted at run-time. The properties of an object can also be enumerated via a for...in loop.

Also, see this series of articles about OOP with Javascript.

think works

Criteria criteria = getSession().createCriteria(clazz); 
Criterion rest1= Restrictions.and(Restrictions.eq(A, "X"), 
           Restrictions.in("B", Arrays.asList("X",Y)));
Criterion rest2= Restrictions.and(Restrictions.eq(A, "Y"), 
           Restrictions.eq(B, "Z"));
criteria.add(Restrictions.or(rest1, rest2));

If you are trying to get the id, then please update your code like

  html += '<option id = "' + n.id + "' value="' + i + '">' + n.names + '</option>';

To retrieve id,

$('option:selected').attr("id")

To retrieve Value

$('option:selected').val()

in Javascript

var e = document.getElementById("jobSel");
var job = e.options[e.selectedIndex].value;

Bootstrap comes with many pre-build classes and one of them is class="text-left". Please call this class whenever needed. :-)

For the record, this is documented in How do I add resources to my JAR? (illustrated for unit tests but the same applies for a "regular" resource):

To add resources to the classpath for your unit tests, you follow the same pattern as you do for adding resources to the JAR except the directory you place resources in is ${basedir}/src/test/resources. At this point you would have a project directory structure that would look like the following:

my-app
|-- pom.xml
`-- src
    |-- main
    |   |-- java
    |   |   `-- com
    |   |       `-- mycompany
    |   |           `-- app
    |   |               `-- App.java
    |   `-- resources
    |       `-- META-INF
    |           |-- application.properties
    `-- test
        |-- java
        |   `-- com
        |       `-- mycompany
        |           `-- app
        |               `-- AppTest.java
        `-- resources
            `-- test.properties

In a unit test you could use a simple snippet of code like the following to access the resource required for testing:

...

// Retrieve resource
InputStream is = getClass().getResourceAsStream("/test.properties" );

// Do something with the resource

...

Test with code snippet below:

Small modification (From the solution provided by vikas) to suit my use case.

1. Open popover on hover event for the popover button
   
2. Keep popover open when hovering over the popover box
   
3. Close popover on mouseleave for either the popover button, or the popover box.
   

$(".pop").popover({
    trigger: "manual",
    html: true,
    animation: false
  })
  .on("mouseenter", function() {
    var _this = this;
    $(this).popover("show");
    $(".popover").on("mouseleave", function() {
      $(_this).popover('hide');
    });
  }).on("mouseleave", function() {
    var _this = this;
    setTimeout(function() {
      if (!$(".popover:hover").length) {
        $(_this).popover("hide");
      }
    }, 300);
  });

<!DOCTYPE html>
<html>

<head>
  <link data-require="bootstrap-css@*" data-semver="3.2.0" rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" />
  <script data-require="jquery@*" data-semver="2.1.1" src="//cdnjs.cloudflare.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
  <script data-require="bootstrap@*" data-semver="3.2.0" src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.js"></script>

  <link rel="stylesheet" href="style.css" />

</head>

<body>
  <h2 class='text-primary'>Another Great "KISS" Bootstrap Popover example!</h2>
  <p class='text-muted'>KISS = Keep It Simple S....</p>

  <p class='text-primary'>Goal:</p>
  <ul>
    <li>Open popover on hover event for the popover button</li>
    <li>Keep popover open when hovering over the popover box</li>
    <li>Close popover on mouseleave for either the popover button, or the popover box.</li>
  </ul>

  <button type="button" class="btn btn-danger pop" data-container="body" data-toggle="popover" data-placement="right" data-content="Optional parameter: Skip if this was not requested<br>                                    A placement group is a logical grouping of instances within a single Availability                                     Zone. Using placement groups enables applications to get the full-bisection bandwidth                                     and low-latency network performance required for tightly coupled, node-to-node                                     communication typical of HPC applications.<br>                                    This only applies to cluster compute instances: cc2.8xlarge, cg1.4xlarge, cr1.8xlarge, hi1.4xlarge and hs1.8xlarge.<br>                                    More info: <a href=&quot;http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/placement-groups.html&quot; target=&quot;_blank&quot;>Click here...</a>"
    data-original-title="" title="">
    HOVER OVER ME
    </button>
  <br><br>
  <button type="button" class="btn btn-info pop" data-container="body" data-toggle="popover" data-placement="right" data-content="Optional parameter: Skip if this was not requested<br>                                    A placement group is a logical grouping of instances within a single Availability                                     Zone. Using placement groups enables applications to get the full-bisection bandwidth                                     and low-latency network performance required for tightly coupled, node-to-node                                     communication typical of HPC applications.<br>                                    This only applies to cluster compute instances: cc2.8xlarge, cg1.4xlarge, cr1.8xlarge, hi1.4xlarge and hs1.8xlarge.<br>                                    More info: <a href=&quot;http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/placement-groups.html&quot; target=&quot;_blank&quot;>Click here...</a>"
    data-original-title="" title="">
    HOVER OVER ME... Again!
    </button><br><br>
  <button type="button" class="btn btn-success pop" data-container="body" data-toggle="popover" data-placement="right" data-content="Optional parameter: Skip if this was not requested<br>                                    A placement group is a logical grouping of instances within a single Availability                                     Zone. Using placement groups enables applications to get the full-bisection bandwidth                                     and low-latency network performance required for tightly coupled, node-to-node                                     communication typical of HPC applications.<br>                                    This only applies to cluster compute instances: cc2.8xlarge, cg1.4xlarge, cr1.8xlarge, hi1.4xlarge and hs1.8xlarge.<br>                                    More info: <a href=&quot;http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/placement-groups.html&quot; target=&quot;_blank&quot;>Click here...</a>"
    data-original-title="" title="">
    Okay one more time... !
    </button>
  <br><br>
  <p class='text-info'>Hope that helps you... Drove me crazy for a while</p>
  <script src="script.js"></script>
</body>

</html>

Assuming you have a song class (you can refer below), the traditional implementation would be like as follows

 class Song
  {
       private String author_name;
       public String setauthorname(String X) {}; //implementation goes here
       public String getauthorname() {}; //implementation goes here
  }

Now, consider this class implementation.

      class Song 
      {
            private String author_name;
            public String Author_Name
            { 
                 get { return author_name; }
                set { author_name= value; }
             }
      }

In your 'Main' class, you will wrote your code as

    class TestSong
    { 
      public static void Main(String[] Args)
      {
          Song _song = new Song(); //create an object for class 'Song'    
          _song.Author_Name = 'John Biley';
          String author = _song.Author_Name;           
          Console.WriteLine("Authorname = {0}"+author);
      }
    }

Point to be noted;

The method you set/get should be public or protected(take care) but strictly shouldnt be private.

You should verify that new File(".") is really pointing to where you think it is pointing - .classpath suggests the root of some Eclipse project....

Use the ampersand just like you would from the shell.

#!/usr/bin/bash
function_to_fork() {
   ...
}

function_to_fork &
# ... execution continues in parent process ...

You should first take a look at this. This explains what happens when you import a package. For convenience:

The import statement uses the following convention: if a package’s __init__.py code defines a list named __all__, it is taken to be the list of module names that should be imported when from package import * is encountered. It is up to the package author to keep this list up-to-date when a new version of the package is released. Package authors may also decide not to support it, if they don’t see a use for importing * from their package.

So PyCharm respects this by showing a warning message, so that the author can decide which of the modules get imported when * from the package is imported. Thus this seems to be useful feature of PyCharm (and in no way can it be called a bug, I presume). You can easily remove this warning by adding the names of the modules to be imported when your package is imported in the __all__ variable which is list, like this

__init__.py

from . import MyModule1, MyModule2, MyModule3
__all__ = [MyModule1, MyModule2, MyModule3]

After you add this, you can ctrl+click on these module names used in any other part of your project to directly jump to the declaration, which I often find very useful.

it stands for your website where your app is running on. like you have made an app www.xyz.pqr then you will type this www.xyz.pqr in App domain the site where your app is running on should be secure and valid

Closing a SpringApplication basically means closing the underlying ApplicationContext. The SpringApplication#run(String...) method gives you that ApplicationContext as a ConfigurableApplicationContext. You can then close() it yourself.

For example,

@SpringBootApplication
public class Example {
    public static void main(String[] args) {
        ConfigurableApplicationContext ctx = SpringApplication.run(Example.class, args);
        // ...determine it's time to shut down...
        ctx.close();
    }
}

Alternatively, you can use the static SpringApplication.exit(ApplicationContext, ExitCodeGenerator...) helper method to do it for you. For example,

@SpringBootApplication
public class Example {
    public static void main(String[] args) {
        ConfigurableApplicationContext ctx = SpringApplication.run(Example.class, args);
        // ...determine it's time to stop...
        int exitCode = SpringApplication.exit(ctx, new ExitCodeGenerator() {
            @Override
            public int getExitCode() {
                // no errors
                return 0;
            }
        });

        // or shortened to
        // int exitCode = SpringApplication.exit(ctx, () -> 0);

        System.exit(exitCode);
    }
}

You only need:

• add a Global.asax to your project,
• delete <add name="Access-Control-Allow-Origin" value="*" /> from your web.config.

• afterward, add this in the Application_BeginRequest method of Global.asax:

  HttpContext.Current.Response.AddHeader("Access-Control-Allow-Origin","*");
  
  if (HttpContext.Current.Request.HttpMethod == "OPTIONS")
  {
      HttpContext.Current.Response.AddHeader("Access-Control-Allow-Methods", "POST,GET,OPTIONS,PUT,DELETE");
      HttpContext.Current.Response.AddHeader("Access-Control-Allow-Headers", "Content-Type, Authorization, Accept");
      HttpContext.Current.Response.End();
  }
  

I hope this help. that work for me.

This answer is counting that the second parameter is useless when calling removeAttr! (as it was when this answer was posted) Do not use this otherwise!

Can't beat RienNeVaPlus's clean answer, but it does the job as well, it's basically a more compressed way to do the ternary operation:

$('.list-sort')[$('.list-sort').hasAttr('colspan') ? 
    'removeAttr' : 'attr']('colspan', 6);

an extra variable can be used in these cases, when you need to use the reference more than once:

var $listSort = $('.list-sort'); 
$listSort[$listSort.hasAttr('colspan') ? 'removeAttr' : 'attr']('colspan', 6);

To convert UTC to local time

let UTC = moment.utc()
let local = moment(UTC).local()

Or you want directly get the local time

let local = moment()

var UTC = moment.utc()_x000D_
console.log(UTC.format()); // UTC time_x000D_
_x000D_
var cLocal = UTC.local()_x000D_
console.log(cLocal.format()); // Convert UTC time_x000D_
_x000D_
var local = moment();_x000D_
console.log(local.format()); // Local time

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.22.2/moment.min.js"></script>

Using the Func as mentioned above works but there are also delegates that do the same task and also define intent within the naming:

public delegate double MyFunction(double x);

public double Diff(double x, MyFunction f)
{
    double h = 0.0000001;

    return (f(x + h) - f(x)) / h;
}

public double MyFunctionMethod(double x)
{
    // Can add more complicated logic here
    return x + 10;
}

public void Client()
{
    double result = Diff(1.234, x => x * 456.1234);
    double secondResult = Diff(2.345, MyFunctionMethod);
}

The permament pool contains everything that is not your application data, but rather things required for the VM: typically it contains interned strings, the byte code of defined classes, but also other "not yours" pieces of data.

On your development machine, you can execute the program and run Sysinternals Process Explorer. In the lower pane, it will show you the loaded DLLs and the current paths to them which is handy for a number of reasons. If you are executing off your deployment package, it would reveal which DLLs are referenced in the wrong path (i.e. weren't packaged correctly).

Currently, our company uses Visual Studio Installer projects to walk the dependency tree and output as loose files the program. In VS2013, this is now an extension: https://visualstudiogallery.msdn.microsoft.com/9abe329c-9bba-44a1-be59-0fbf6151054d. We then package these loose files in a more comprehensive installer but at least that setup project all the dot net dependencies and drops them into the one spot and warns you when things are missing.

def is_prime(x):  
    if x<2:  
        return False  
    elif x == 2:  
        return True  
    else:  
        for n in range(2, x):  
            if x%n==0:  
                return False  
        return True

Avoid paddings and margins in newsletters, some email clients will ignore this properties.

You can use empty tr and td as was suggested (but this will result in a lot of html), or you can use borders with the same border color as the background of the email. so, instead of padding-top: 40px you can use border-top: 40px solid #ffffff (assuming that the background color of the email is #ffffff)

I've tested this solution in gmail (and gmail for business), yahoo mail, outlook web, outlook desktop, thunderbird, apple mail and more. As far as I can tell, border property is pretty safe to use everywhere.

Example:

<!-- With paddings: WON'T WORK IN ALL EMAIL CLIENTS! -->
<table>

    <tr>

        <td style="padding: 10px 10px 10px 10px">
            <!-- Content goes here -->
        </td>

    </tr>

</table>


<!-- Same result with borders and same border color of the background -->
<table>

    <tr>

        <td style="border: solid 10px #ffffff">
           <!-- Content goes here -->
        </td>

    </tr>

</table>


<!-- Same result using empty td/tr. (A lot more html than borders, get messy on large emails) -->
<table>

    <tr>
        <td colspan="3" height="10" style="height: 10px; line-height: 1px">&nbsp;</td>
    </tr>


    <tr>

        <td width="10" style="width: 10px; line-height: 1px">&nbsp;</td>

        <td><!--Content goes here--></td>

        <td width="10" style="width: 10px; line-height: 1px">&nbsp;</td>

    </tr>


    <tr>
        <td colspan="3" height="10" style="height: 10px; line-height: 1px">&nbsp;</td>
    </tr>

</table>
<!-- With tr/td every property is needed. height must be setted both as attribute and style, same with width, line-height must be setted JIC default value is greater than actual height and without the &nbsp; some email clients won't render the column because is empty. You can remove the colspan and still will work, but is annoying when inspecting the element in browser not to see a perfect square table -->

In addition, here is an excelent guide to make responsive newsletters without mediaqueries. The emails really works everywhere:

https://webdesign.tutsplus.com/tutorials/creating-a-future-proof-responsive-email-without-media-queries--cms-23919

And always remember to make styles inline:

https://inliner.cm/

To test emails, here is a good resource:

https://putsmail.com/

Finally, for doubts about css support in email clients you can go here:

https://templates.mailchimp.com/resources/email-client-css-support/

or here:

https://www.campaignmonitor.com/css/

It is an old topic, but for some people it might be useful:

        DataSet someDataSet = new DataSet();
        SqlDataAdapter adapt = new SqlDataAdapter();

        using(SqlConnection connection = new SqlConnection(ConnString))
        {
            connection.Open();
            SqlCommand comm1 = new SqlCommand("SELECT * FROM whateverTable", connection);
            SqlCommand comm2g = new SqlCommand("SELECT * FROM whateverTable WHERE condition = @0", connection);
            commProcessing.Parameters.AddWithValue("@0", "value");
            someDataSet.Tables.Add("Table1");
            someDataSet.Tables.Add("Table2");

            adapt.SelectCommand = comm1;
            adapt.Fill(someDataSet.Tables["Table1"]);
            adapt.SelectCommand = comm2;
            adapt.Fill(someDataSet.Tables["Table2"]);
        }

To get the current time in the local timezone as a naive datetime object:

from datetime import datetime
naive_dt = datetime.now()

If it doesn't return the expected time then it means that your computer is misconfigured. You should fix it first (it is unrelated to Python).

To get the current time in UTC as a naive datetime object:

naive_utc_dt = datetime.utcnow()

To get the current time as an aware datetime object in Python 3.3+:

from datetime import datetime, timezone

utc_dt = datetime.now(timezone.utc) # UTC time
dt = utc_dt.astimezone() # local time

To get the current time in the given time zone from the tz database:

import pytz

tz = pytz.timezone('Europe/Berlin')
berlin_now = datetime.now(tz)

It works during DST transitions. It works if the timezone had different UTC offset in the past i.e., it works even if the timezone corresponds to multiple tzinfo objects at different times.

What gets returned is the return value of executing this command. What you see in while executing it directly is the output of the command in stdout. That 0 is returned means, there was no error in execution.

Use popen etc for capturing the output .

Some thing along this line:

import subprocess as sub
p = sub.Popen(['your command', 'arg1', 'arg2', ...],stdout=sub.PIPE,stderr=sub.PIPE)
output, errors = p.communicate()
print output

or

import os
p = os.popen('command',"r")
while 1:
    line = p.readline()
    if not line: break
    print line

ON SO : Popen and python

If only names of regular files immediately contained within a directory (assume it's ~/dirs) are needed, you can do

find ~/docs -type f -maxdepth 1 > filenames.txt

You do want to avoid explicit loops as much as possible when doing array computing, as that reduces the speed gain from that form of computing. There are multiple ways to initialize a numpy array. If you want it filled with zeros, do as katrielalex said:

big_array = numpy.zeros((10,4))

EDIT: What sort of sequence is it you're making? You should check out the different numpy functions that create arrays, like numpy.linspace(start, stop, size) (equally spaced number), or numpy.arange(start, stop, inc). Where possible, these functions will make arrays substantially faster than doing the same work in explicit loops

var yearStart = 2000;
var yearEnd = 2040;

var arr = [];

for (var i = yearStart; i <= yearEnd; i++) {

     arr.push(i);
}

Despite all the explanations, LEA is an arithmetic operation:

LEA Rt, [Rs1+a*Rs2+b] =>  Rt = Rs1 + a*Rs2 + b

It's just that its name is extremelly stupid for a shift+add operation. The reason for that was already explained in the top rated answers (i.e. it was designed to directly map high level memory references).

for xampp vm on MacOS capitan, high sierra, MacOS Mojave (10.12+), you can follow these

1. mount /opt/lampp
2. explore the folder
3. open terminal from the folder
4. cd to `htdocs`>yourapp (ex: techaz.co)
5. vim .htaccess
6. paste your .htaccess content (that is suggested on options-permalink.php)

None of the previous answers completely solved my use case.

Needed to remove the directory that was being built. Clean. And then re-install. Looks like a silent permissions issue.

<h1 style="text-align: left; float: left;">Text 1</h1>
<h2 style="text-align: right; float: right; display: inline;">Text 2</h2>
<hr style="clear: both;" />

Hope this helps!

The folder containing your Anaconda installation contains a subfolder called conda-meta with json files for all installed packages, including one for Anaconda itself. Look for anaconda-<version>-<build>.json.

My file is called anaconda-5.0.1-py27hdb50712_1.json, and at the bottom is more info about the version:

"installed_by": "Anaconda2-5.0.1-Windows-x86_64.exe", 
"link": { "source": "C:\\ProgramData\\Anaconda2\\pkgs\\anaconda-5.0.1-py27hdb50712_1" }, 
"name": "anaconda", 
"platform": "win", 
"subdir": "win-64", 
"url": "https://repo.continuum.io/pkgs/main/win-64/anaconda-5.0.1-py27hdb50712_1.tar.bz2", 
"version": "5.0.1"

(Slightly edited for brevity.)

The output from conda -V is the conda version.

Usually I do this:

<div>
   <p> 
       <img src='1.jpg' align='left' />
       Text Here
   <p>
</div>

While the project was in debug mode, the solution was not. When I changed it, it worked.

Not sure if this is really beneficial or why I prefer this style but what I do (in vanilla js) is:

document.querySelector('#selector').toggleAttribute('data-something');

This will add the attribute in all lowercase without a value or remove it if it already exists on the element.

https://developer.mozilla.org/en-US/docs/Web/API/Element/toggleAttribute

I'd like to add a correction/update to the bit about $HOME taking precedence. The home directory in /etc/passwd takes precedence over everything.

I'm a long time Cygwin user and I just did a clean install of Windows 7 x64 and Cygwin V1.126. I was going nuts trying to figure out why every time I ran ssh I kept getting:

e:\>ssh foo.bar.com
Could not create directory '/home/dhaynes/.ssh'.
The authenticity of host 'foo.bar.com (10.66.19.19)' can't be established.
...

I add the HOME=c:\users\dhaynes definition in the Windows environment but still it kept trying to create '/home/dhaynes'. I tried every combo I could including setting HOME to /cygdrive/c/users/dhaynes. Googled for the error message, could not find anything, couldn't find anything on the cygwin site. I use cygwin from cmd.exe, not bash.exe but the problem was present in both.

I finally realized that the home directory in /etc/passwd was taking precedence over the $HOME environment variable. I simple re-ran 'mkpasswd -l >/etc/passwd' and that updated the home directory, now all is well with ssh.

That may be obvious to linux types with sysadmin experience but for those of us who primarily use Windows it's a bit obscure.

Use:

SELECT tbl.*
FROM TableName tbl
  INNER JOIN
  (
    SELECT Id, MIN(Point) MinPoint
    FROM TableName
    GROUP BY Id
  ) tbl1
  ON tbl1.id = tbl.id
WHERE tbl1.MinPoint = tbl.Point

The problem is even if you create a proxy or load the content and inject it as if it's local, any scripts that that content defines will be loaded from the other domain and cause cross-domain problems.

The == operator on pointers will compare their numeric address and hence determine if they point to the same object.

There is a problem with using Solution 1 while appling it on only column in rows. Would like to improve Solution 1.

 [class^="col-"]:not([class*="-12"]){
      margin-bottom: -99999px;
      padding-bottom: 99999px;
  }

(Sorry, can't comment Popnoodles's anwer. I have not enough reputations)

Use CSS background:transparent; to your button/div.

JSFiddle

Since Java 6 there is also non-blocking thread-safe alternative to TreeMap. See ConcurrentSkipListMap.

By using this query you can see all open transactions.

List All:

SHOW FULL PROCESSLIST  

if you want to kill a hang transaction copy transaction id and kill transaction by using this command:

KILL <id>    // e.g KILL 16543

Policykit is a system daemon and policykit authentication agent is used to verify identity of the user before executing actions. The messages logged in /var/log/secure show that an authentication agent is registered when user logs in and it gets unregistered when user logs out. These messages are harmless and can be safely ignored.

You need to run Set-ExecutionPolicy:

Set-ExecutionPolicy Unrestricted <-- Will allow unsigned PowerShell scripts to run.

Set-ExecutionPolicy Restricted <-- Will not allow unsigned PowerShell scripts to run.

Set-ExecutionPolicy RemoteSigned <-- Will allow only remotely signed PowerShell scripts to run.

When working with Spring boot 2.1.x this warning message appears when starting up the application.

As indicated here, maybe this problem didn't show up in earlier versions because the related property was set to true by default and now it is false:

https://github.com/spring-projects/spring-boot/issues/12007

In consequence, solving this is as simple as adding the following property to the spring application.property file.

spring.jpa.properties.hibernate.jdbc.lob.non_contextual_creation = true

use :

SELECT cast(CHAR(50),id) as colI1 from t9;

another nice recursive way to generate HTML from a nested JSON object (currently not supporting arrays):

// generate HTML code for an object
var make_table = function(json, css_class='tbl_calss', tabs=1){
    // helper to tabulate the HTML tags. will return '\t\t\t' for num_of_tabs=3
    var tab = function(num_of_tabs){
        var s = '';
        for (var i=0; i<num_of_tabs; i++){
            s += '\t';
        }
        //console.log('tabbing done. tabs=' + tabs)
        return s;
    }
    // recursive function that returns a fixed block of <td>......</td>.
    var generate_td = function(json){ 
        if (!(typeof(json) == 'object')){
            // for primitive data - direct wrap in <td>...</td>
            return tab(tabs) + '<td>'+json+'</td>\n';
        }else{
            // recursive call for objects to open a new sub-table inside the <td>...</td>
            // (object[key] may be also an object)
            var s = tab(++tabs)+'<td>\n';
            s +=        tab(++tabs)+'<table class="'+css_class+'">\n';
            for (var k in json){
                s +=        tab(++tabs)+'<tr>\n';
                s +=          tab(++tabs)+'<td>' + k + '</td>\n';
                s +=                      generate_td(json[k]);
                s +=        tab(--tabs)+'</tr>' + tab(--tabs) + '\n';


            }
            // close the <td>...</td> external block
            s +=        tab(tabs--)+'</table>\n';
            s +=    tab(tabs--)+'</td>\n';
            return s;
        }
    }
    // construct the complete HTML code
    var html_code = '' ;
    html_code += tab(++tabs)+'<table class="'+css_class+'">\n';
    html_code +=   tab(++tabs)+'<tr>\n';
    html_code +=     generate_td(json);
    html_code +=   tab(tabs--)+'</tr>\n';
    html_code += tab(tabs--)+'</table>\n';
    return html_code;
}

Solution:

1. Run Visual Paradigm
2. Do as below, pointing to Android Atudio directory on step 4

3. Open Android Studio and right click on project

It can be done using Java's sleep method. I've tested it in FF and IE and it doesn't lock the computer, chew up resources, or cause endless server hits. Seems like a clean solution to me.

First you have to get Java loaded up on the page and make its methods available. To do that, I did this:

<html>
<head>

<script type="text/javascript">

  function load() {
    var appletRef = document.getElementById("app");
    window.java = appletRef.Packages.java;
  } // endfunction

</script>

<body onLoad="load()">

<embed id="app" code="java.applet.Applet" type="application/x-java-applet" MAYSCRIPT="true" width="0" height="0" />

Then, all you have to do when you want a painless pause in your JS is:

java.lang.Thread.sleep(xxx)

Where xxx is time in milliseconds. In my case (by way of justification), this was part of back-end order fulfillment at a very small company and I needed to print an invoice that had to be loaded from the server. I did it by loading the invoice (as a webpage) into an iFrame and then printing the iFrame. Of course, I had to wait until the page was fully loaded before I could print, so the JS had to pause. I accomplished this by having the invoice page (in the iFrame) change a hidden form field on the parent page with the onLoad event. And the code on the parent page to print the invoice looked like this (irrelevant parts cut for clarity):

var isReady = eval('document.batchForm.ready');
isReady.value=0;

frames['rpc_frame'].location.href=url;

while (isReady.value==0) {
  java.lang.Thread.sleep(250);
} // endwhile

window.frames['rpc_frame'].focus();
window.frames['rpc_frame'].print();

So the user pushes the button, the script loads the invoice page, then waits, checking every quarter second to see if the invoice page is finished loading, then pops up the print dialog for the user to send it to the printer. QED.

I would start by upgrading PHP to 5.4+ as it's up to 50% faster for some applications. They fixed a large number of memory leaks. Please see becnhamrks: http://news.php.net/php.internals/57760

Just found base64-arraybuffer, a small npm package with incredibly high usage, 5M downloads last month (2017-08).

https://www.npmjs.com/package/base64-arraybuffer

For anyone looking for something of a best standard solution, this may be it.

You can use virtualenv --clear. which won't install any packages, then install the ones you want.

As setYear() is deprecated, correct variant is:

// plus 1 year
new Date().setFullYear(new Date().getFullYear() + 1)
// plus 1 month
new Date().setMonth(new Date().getMonth() + 1)
// plus 1 day
new Date().setDate(new Date().getDate() + 1)

All examples return Unix timestamp, if you want to get Date object - just wrap it with another new Date(...)

To split on a string you need to use the overload that takes an array of strings:

string[] lines = theText.Split(
    new[] { Environment.NewLine },
    StringSplitOptions.None
);

Edit:
If you want to handle different types of line breaks in a text, you can use the ability to match more than one string. This will correctly split on either type of line break, and preserve empty lines and spacing in the text:

string[] lines = theText.Split(
    new[] { "\r\n", "\r", "\n" },
    StringSplitOptions.None
);

Note that in Swift, you can just do

let testBool: Bool = true
NSLog("testBool = %@", testBool.description)

This will log testBool = true

In Spring there is a dedicated utility called ReflectionTestUtils for this purpose. Take the specific instance and inject into the the field.

@Spy
..
@Mock
..

@InjectMock
Foo foo;

@BeforeEach
void _before(){
   ReflectionTestUtils.setField(foo,"bar", new BarImpl());// `bar` is private field
}

First of all, delete is a reserved word in javascript, I'm surprised this even executes for you (When I test it in Firefox, I get a syntax error)

Secondly, your HTML looks weird - is there a reason you're closing the opening anchor tags with /> instead of just > ?

Have you tried rake reklamer:iqmedier ?

My custom rake tasks are in the lib directory, not in lib/tasks. Not sure if that matters.

You need to install this extension to Visual Studio 2017/2019 in order to get access to the Installer Projects.

According to the page:

This extension provides the same functionality that currently exists in Visual Studio 2015 for Visual Studio Installer projects. To use this extension, you can either open the Extensions and Updates dialog, select the online node, and search for "Visual Studio Installer Projects Extension," or you can download directly from this page.

Once you have finished installing the extension and restarted Visual Studio, you will be able to open existing Visual Studio Installer projects, or create new ones.

I am new to retrofit and I am enjoying it. So here is a simple way to understand it for those that might want to query with more than one query: The ? and & are automatically added for you.

Interface:

 public interface IService {

      String BASE_URL = "https://api.test.com/";
      String API_KEY = "SFSDF24242353434";

      @GET("Search") //i.e https://api.test.com/Search?
      Call<Products> getProducts(@Query("one") String one, @Query("two") String two,    
                                @Query("key") String key)
}

It will be called this way. Considering you did the rest of the code already.

  Call<Results> call = service.productList("Whatever", "here", IService.API_KEY);

For example, when a query is returned, it will look like this.

//-> https://api.test.com/Search?one=Whatever&two=here&key=SFSDF24242353434 

Link to full project: Please star etc: https://github.com/Cosmos-it/ILoveZappos

If you found this useful, don't forget to star it please. :)

Non-blocking, multi-threaded example:

As blocking on keyboard input (since the input() function blocks) is frequently not what we want to do (we'd frequently like to keep doing other stuff), here's a very-stripped-down multi-threaded example to demonstrate how to keep running your main application while still reading in keyboard inputs whenever they arrive.

This works by creating one thread to run in the background, continually calling input() and then passing any data it receives to a queue.

In this way, your main thread is left to do anything it wants, receiving the keyboard input data from the first thread whenever there is something in the queue.

1. Bare Python 3 code example (no comments):

import threading
import queue
import time

def read_kbd_input(inputQueue):
    print('Ready for keyboard input:')
    while (True):
        input_str = input()
        inputQueue.put(input_str)

def main():
    EXIT_COMMAND = "exit"
    inputQueue = queue.Queue()

    inputThread = threading.Thread(target=read_kbd_input, args=(inputQueue,), daemon=True)
    inputThread.start()

    while (True):
        if (inputQueue.qsize() > 0):
            input_str = inputQueue.get()
            print("input_str = {}".format(input_str))

            if (input_str == EXIT_COMMAND):
                print("Exiting serial terminal.")
                break
            
            # Insert your code here to do whatever you want with the input_str.

        # The rest of your program goes here.

        time.sleep(0.01) 
    print("End.")

if (__name__ == '__main__'): 
    main()

2. Same Python 3 code as above, but with extensive explanatory comments:

"""
read_keyboard_input.py

Gabriel Staples
www.ElectricRCAircraftGuy.com
14 Nov. 2018

References:
- https://pyserial.readthedocs.io/en/latest/pyserial_api.html
- *****https://www.tutorialspoint.com/python/python_multithreading.htm
- *****https://en.wikibooks.org/wiki/Python_Programming/Threading
- https://stackoverflow.com/questions/1607612/python-how-do-i-make-a-subclass-from-a-superclass
- https://docs.python.org/3/library/queue.html
- https://docs.python.org/3.7/library/threading.html

To install PySerial: `sudo python3 -m pip install pyserial`

To run this program: `python3 this_filename.py`

"""

import threading
import queue
import time

def read_kbd_input(inputQueue):
    print('Ready for keyboard input:')
    while (True):
        # Receive keyboard input from user.
        input_str = input()
        
        # Enqueue this input string.
        # Note: Lock not required here since we are only calling a single Queue method, not a sequence of them 
        # which would otherwise need to be treated as one atomic operation.
        inputQueue.put(input_str)

def main():

    EXIT_COMMAND = "exit" # Command to exit this program

    # The following threading lock is required only if you need to enforce atomic access to a chunk of multiple queue
    # method calls in a row.  Use this if you have such a need, as follows:
    # 1. Pass queueLock as an input parameter to whichever function requires it.
    # 2. Call queueLock.acquire() to obtain the lock.
    # 3. Do your series of queue calls which need to be treated as one big atomic operation, such as calling
    # inputQueue.qsize(), followed by inputQueue.put(), for example.
    # 4. Call queueLock.release() to release the lock.
    # queueLock = threading.Lock() 

    #Keyboard input queue to pass data from the thread reading the keyboard inputs to the main thread.
    inputQueue = queue.Queue()

    # Create & start a thread to read keyboard inputs.
    # Set daemon to True to auto-kill this thread when all other non-daemonic threads are exited. This is desired since
    # this thread has no cleanup to do, which would otherwise require a more graceful approach to clean up then exit.
    inputThread = threading.Thread(target=read_kbd_input, args=(inputQueue,), daemon=True)
    inputThread.start()

    # Main loop
    while (True):

        # Read keyboard inputs
        # Note: if this queue were being read in multiple places we would need to use the queueLock above to ensure
        # multi-method-call atomic access. Since this is the only place we are removing from the queue, however, in this
        # example program, no locks are required.
        if (inputQueue.qsize() > 0):
            input_str = inputQueue.get()
            print("input_str = {}".format(input_str))

            if (input_str == EXIT_COMMAND):
                print("Exiting serial terminal.")
                break # exit the while loop
            
            # Insert your code here to do whatever you want with the input_str.

        # The rest of your program goes here.

        # Sleep for a short time to prevent this thread from sucking up all of your CPU resources on your PC.
        time.sleep(0.01) 
    
    print("End.")

# If you run this Python file directly (ex: via `python3 this_filename.py`), do the following:
if (__name__ == '__main__'): 
    main()

Sample output:

$ python3 read_keyboard_input.py
Ready for keyboard input:
hey
input_str = hey
hello
input_str = hello
7000
input_str = 7000
exit
input_str = exit
Exiting serial terminal.
End.

The Python Queue library is thread-safe:

Note that Queue.put() and Queue.get() and other Queue class methods are thread-safe! That means they implement all the internal locking semantics required for inter-thread operations, so each function call in the queue class can be considered as a single, atomic operation. See the notes at the top of the documentation: https://docs.python.org/3/library/queue.html (emphasis added):

The queue module implements multi-producer, multi-consumer queues. It is especially useful in threaded programming when information must be exchanged safely between multiple threads. The Queue class in this module implements all the required locking semantics.

References:

1. https://pyserial.readthedocs.io/en/latest/pyserial_api.html
2. *****https://www.tutorialspoint.com/python/python_multithreading.htm
3. *****https://en.wikibooks.org/wiki/Python_Programming/Threading
4. Python: How do I make a subclass from a superclass?
5. https://docs.python.org/3/library/queue.html
6. https://docs.python.org/3.7/library/threading.html

Related/Cross-Linked:

1. PySerial non-blocking read loop

if u wanna use async await try

export const post = async ( link,data ) => {
const option = {
    method: 'post',
    url: `${URL}${link}`,
    validateStatus: function (status) {
        return status >= 200 && status < 300; // default
      },
    data
};

try {
    const response = await axios(option);
} catch (error) {
    const { response } = error;
    const { request, ...errorObject } = response; // take everything but 'request'
    console.log(errorObject);
}

you can use ng-if because this is not render in html page and you dont see your html tag in inspect...

<ul ng-repeat="item in items" ng-if="items.length > 0">
    <li>{{item}}<li>
</ul>
<div class="alert alert-info">there is no items!</div>

This is what worked for me: I placed the desired thumbnail image on the page right after the tag and making it too small to see..

<img src="imagename.jpg" width="1" height="1" />

I have not tested it with height 0 and width 0 but it probably will still work.. This does not guarantee the user will select this image..

ALSO it seems like Facebook caches the thumbnails on your page and doesnt always check it for new ones.. try adding this to another page on your site and you'll see that it works.

Put your query (e.g. db.someCollection.find().pretty()) to a javascript file, let's say query.js. Then run it in your operating system's shell using command:

mongo yourDb < query.js > outputFile

Query result will be in the file named 'outputFile'.

By default Mongo prints out first 20 documents IIRC. If you want more you can define new value to batch size in Mongo shell, e.g.

DBQuery.shellBatchSize = 100.

You can use a regular expression to test for a match and capture the first two digits:

import re

for i in range(1000):
    match = re.match(r'(1[56])', str(i))

    if match:
        print(i, 'begins with', match.group(1))

The regular expression (1[56]) matches a 1 followed by either a 5 or a 6 and stores the result in the first capturing group.

Output:

15 begins with 15
16 begins with 16
150 begins with 15
151 begins with 15
152 begins with 15
153 begins with 15
154 begins with 15
155 begins with 15
156 begins with 15
157 begins with 15
158 begins with 15
159 begins with 15
160 begins with 16
161 begins with 16
162 begins with 16
163 begins with 16
164 begins with 16
165 begins with 16
166 begins with 16
167 begins with 16
168 begins with 16
169 begins with 16

Although this is valid in HTML, you can't use an ID starting with an integer in CSS selectors.

As pointed out, you can use getElementById instead, but you can also still achieve the same with a querySelector:

document.querySelector("[id='22']")

Here is another way to do it that IMHO is more simple and elegant than any of the other answers provided.

This program has a function that takes two parameters, prints them out and also prints the sum:

import multiprocessing

def main():

    with multiprocessing.Pool(10) as pool:
        params = [ (2, 2), (3, 3), (4, 4) ]
        pool.starmap(printSum, params)
    # end with

# end function

def printSum(num1, num2):
    mySum = num1 + num2
    print('num1 = ' + str(num1) + ', num2 = ' + str(num2) + ', sum = ' + str(mySum))
# end function

if __name__ == '__main__':
    main()

output is:

num1 = 2, num2 = 2, sum = 4
num1 = 3, num2 = 3, sum = 6
num1 = 4, num2 = 4, sum = 8

See the python docs for more info:

https://docs.python.org/3/library/multiprocessing.html#module-multiprocessing.pool

In particular be sure to check out the starmap function.

I'm using Python 3.6, I'm not sure if this will work with older Python versions

Why there is not a very straight-forward example like this in the docs, I'm not sure.

I have used transform to correct the offset. It works great with round icons like the life ring.

<span class="fa fa-life-ring"></span>

.fa {
    transform: translateY(-4%);
}

1-> Using File Default Config- Angular-cli comes from the ember-cli project. To run the application on specific port, create an .ember-cli file in the project root. Add your JSON config in there:

{ "port": 1337 }

2->Using Command Line Tool Run this command in Angular-Cli

ng serve --port 1234

To change the port number permanently:

Goto

node_modules/angular-cli/commands/server.js

Search for var defaultPort = process.env.PORT || 4200; (change 4200 to anything else you want).

Separate with commas:

http://localhost:8080/MovieDB/GetJson?name=Actor1,Actor2,Actor3&startDate=20120101&endDate=20120505

or:

http://localhost:8080/MovieDB/GetJson?name=Actor1&name=Actor2&name=Actor3&startDate=20120101&endDate=20120505

or:

http://localhost:8080/MovieDB/GetJson?name[0]=Actor1&name[1]=Actor2&name[2]=Actor3&startDate=20120101&endDate=20120505

Either way, your method signature needs to be:

@RequestMapping(value = "/GetJson", method = RequestMethod.GET) 
public void getJson(@RequestParam("name") String[] ticker, @RequestParam("startDate") String startDate, @RequestParam("endDate") String endDate) {
   //code to get results from db for those params.
 }

Both source and target should be specified. I recommend providing ant defaults, that way you do not need to specify source/target attribute for every javac task:

<property name="ant.build.javac.source" value="1.5"/>
<property name="ant.build.javac.target" value="1.5"/>

See Java cross-compiling notes for more information.

To clarify some points:

As jro has mentioned, the right way is to use subprocess.communicate.

Yet, when feeding the stdin using subprocess.communicate with input, you need to initiate the subprocess with stdin=subprocess.PIPE according to the docs.

Note that if you want to send data to the process’s stdin, you need to create the Popen object with stdin=PIPE. Similarly, to get anything other than None in the result tuple, you need to give stdout=PIPE and/or stderr=PIPE too.

Also qed has mentioned in the comments that for Python 3.4 you need to encode the string, meaning you need to pass Bytes to the input rather than a string. This is not entirely true. According to the docs, if the streams were opened in text mode, the input should be a string (source is the same page).

If streams were opened in text mode, input must be a string. Otherwise, it must be bytes.

So, if the streams were not opened explicitly in text mode, then something like below should work:

import subprocess
command = ['myapp', '--arg1', 'value_for_arg1']
p = subprocess.Popen(command, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
output = p.communicate(input='some data'.encode())[0]

I've left the stderr value above deliberately as STDOUT as an example.

That being said, sometimes you might want the output of another process rather than building it up from scratch. Let's say you want to run the equivalent of echo -n 'CATCH\nme' | grep -i catch | wc -m. This should normally return the number characters in 'CATCH' plus a newline character, which results in 6. The point of the echo here is to feed the CATCH\nme data to grep. So we can feed the data to grep with stdin in the Python subprocess chain as a variable, and then pass the stdout as a PIPE to the wc process' stdin (in the meantime, get rid of the extra newline character):

import subprocess

what_to_catch = 'catch'
what_to_feed = 'CATCH\nme'

# We create the first subprocess, note that we need stdin=PIPE and stdout=PIPE
p1 = subprocess.Popen(['grep', '-i', what_to_catch], stdin=subprocess.PIPE, stdout=subprocess.PIPE)

# We immediately run the first subprocess and get the result
# Note that we encode the data, otherwise we'd get a TypeError
p1_out = p1.communicate(input=what_to_feed.encode())[0]

# Well the result includes an '\n' at the end, 
# if we want to get rid of it in a VERY hacky way
p1_out = p1_out.decode().strip().encode()

# We create the second subprocess, note that we need stdin=PIPE
p2 = subprocess.Popen(['wc', '-m'], stdin=subprocess.PIPE, stdout=subprocess.PIPE)

# We run the second subprocess feeding it with the first subprocess' output.
# We decode the output to convert to a string
# We still have a '\n', so we strip that out
output = p2.communicate(input=p1_out)[0].decode().strip()

This is somewhat different than the response here, where you pipe two processes directly without adding data directly in Python.

Hope that helps someone out.

SET session_replication_role = replica; 

It doesn't work with PostgreSQL 9.4 on my Linux machine if i change a table through table editor in pgAdmin and works if i change table through ordinary query. Manual changes in pg_trigger table also don't work without server restart but dynamic query like on postgresql.nabble.com ENABLE / DISABLE ALL TRIGGERS IN DATABASE works. It could be useful when you need some tuning.

For example if you have tables in a particular namespace it could be:

create or replace function disable_triggers(a boolean, nsp character varying) returns void as
$$
declare 
act character varying;
r record;
begin
    if(a is true) then
        act = 'disable';
    else
        act = 'enable';
    end if;

    for r in select c.relname from pg_namespace n
        join pg_class c on c.relnamespace = n.oid and c.relhastriggers = true
        where n.nspname = nsp
    loop
        execute format('alter table %I %s trigger all', r.relname, act); 
    end loop;
end;
$$
language plpgsql;

If you want to disable all triggers with certain trigger function it could be:

create or replace function disable_trigger_func(a boolean, f character varying) returns void as
$$
declare 
act character varying;
r record;
begin
    if(a is true) then
        act = 'disable';
    else
        act = 'enable';
    end if;

    for r in select c.relname from pg_proc p 
        join pg_trigger t on t.tgfoid = p.oid
        join pg_class c on c.oid = t.tgrelid
        where p.proname = f
    loop
        execute format('alter table %I %s trigger all', r.relname, act); 
    end loop;
end;
$$
language plpgsql;

PostgreSQL documentation for system catalogs

There are another control options of trigger firing process:

ALTER TABLE ... ENABLE REPLICA TRIGGER ... - trigger will fire in replica mode only.

ALTER TABLE ... ENABLE ALWAYS TRIGGER ... - trigger will fire always (obviously)

If you have android, you can install free app on phone (Wifi file Transfer) and enable ssl, port and other options for access and send data in both directions just start application and write in pc browser phone ip and port. enjoy!

We can also convert data.frame columns generically to a simple vector. as.vector is not enough as it retains the data.frame class and structure, so we also have to pull out the first (and only) element:

df_column_object <- aframe[,2]
simple_column <- df_column_object[[1]]

All the solutions suggested so far require hardcoding column titles. This makes them non-generic (imagine applying this to function arguments).

Alternatively, you could, of course read the column names from the column first and then insert them in the code in the other solutions.

You can set the line-height in pixels instead of percentage. Is that what you mean?

mysql -u <user> -p -e "select * from schema.table"

You may also want to set the button size.

QPixmap pixmap("image_path");
QIcon ButtonIcon(pixmap);
button->setIcon(ButtonIcon);
button->setIconSize(pixmap.rect().size());
button->setFixedSize(pixmap.rect().size());

A really simple solution is just to edit the $state.current.name string and cut out everything including and after the last '.' - you get the name of the parent state. This doesn't work if you jump a lot between states because it just parses back the current path. But if your states correspond to where you actually are, then this works.

var previousState = $state.current.name.substring(0, $state.current.name.lastIndexOf('.'))
$state.go(previousState)

The provided solution does not work for instances of types loaded from a remote assembly. To do that, here is a solution that works in all situations, which involves an explicit type re-mapping of the type returned through the CreateInstance call.

This is how I need to create my classInstance, as it was located in a remote assembly.

// sample of my CreateInstance call with an explicit assembly reference
object classInstance = Activator.CreateInstance(assemblyName, type.FullName); 

However, even with the answer provided above, you'd still get the same error. Here is how to go about:

// first, create a handle instead of the actual object
ObjectHandle classInstanceHandle = Activator.CreateInstance(assemblyName, type.FullName);
// unwrap the real slim-shady
object classInstance = classInstanceHandle.Unwrap(); 
// re-map the type to that of the object we retrieved
type = classInstace.GetType(); 

Then do as the other users mentioned here.

Try this one:

private String toDate() {
    DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");

    // Create a calendar object with today date. Calendar is in java.util pakage.
    Calendar calendar = Calendar.getInstance();

    // Move calendar to yesterday
    calendar.add(Calendar.DATE, -1);

    // Get current date of calendar which point to the yesterday now
    Date yesterday = calendar.getTime();

    return dateFormat.format(yesterday).toString();
}

How to redirect to Login page when Session is expired in Java web application?

This is a wrong question. You should differentiate between the cases "User is not logged in" and "Session is expired". You basically want to redirect to login page when user is not logged in. Not when session is expired. The currently accepted answer only checks HttpSession#isNew(). But this obviously fails when the user has sent more than one request in the same session when the session is implicitly created by the JSP or what not. E.g. when just pressing F5 on the login page.

As said, you should instead be checking if the user is logged in or not. Given the fact that you're asking this kind of question while standard authentication frameworks like j_security_check, Shiro, Spring Security, etc already transparently manage this (and thus there would be no need to ask this kind of question on them), that can only mean that you're using a homegrown authentication approach.

Assuming that you're storing the logged-in user in the session in some login servlet like below:

@WebServlet("/login")
public class LoginServlet extends HttpServlet {

    @EJB
    private UserService userService;

    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.getRequestDispatcher("/WEB-INF/login.jsp").forward(request, response);
    }

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        String username = request.getParameter("username");
        String password = request.getParameter("password");
        User user = userService.find(username, password);

        if (user != null) {
            request.getSession().setAttribute("user", user);
            response.sendRedirect(request.getContextPath() + "/home");
        } else {
            request.setAttribute("error", "Unknown login, try again");
            doGet(request, response);
        }
    }

}

Then you can check for that in a login filter like below:

@WebFilter("/*")
public class LoginFilter implements Filter {

    @Override
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws ServletException, IOException {    
        HttpServletRequest request = (HttpServletRequest) req;
        HttpServletResponse response = (HttpServletResponse) res;
        HttpSession session = request.getSession(false);
        String loginURI = request.getContextPath() + "/login";

        boolean loggedIn = session != null && session.getAttribute("user") != null;
        boolean loginRequest = request.getRequestURI().equals(loginURI);

        if (loggedIn || loginRequest) {
            chain.doFilter(request, response);
        } else {
            response.sendRedirect(loginURI);
        }
    }

    // ...
}

No need to fiddle around with brittle HttpSession#isNew() checks.

#pragma is for compiler directives that are machine-specific or operating-system-specific, i.e. it tells the compiler to do something, set some option, take some action, override some default, etc. that may or may not apply to all machines and operating systems.

See msdn for more info.

You can write:

python
import keras
keras.__version__

On Linux, I often use curl with the --head parameter. It is available for several operating systems, including Windows.

[edit] related to the answer below, gknw.net is currently down as of February 23 2012. Check curl.haxx.se for updated info.

This is how I do it in FreeBSD:

#!/usr/local/bin/bash
for i in $(ipcs -a | grep "^s" | awk '{ print $2 }');
do
        echo "ipcrm -s $i"
        ipcrm -s $i
done

    if((number%1)!=0)
    {
        System.out.println("not a integer");
    }
    else
    {
        System.out.println("integer");
    }

For php, when you use checkboxes for multiple values, the name always ends with []. We can use this to make the solution a bit more generic. And, since I put my error message in a data-message-value-missing attribute, I use:

$form.on('change', 'input[type=checkbox][name$="[]"]', e => {
    const $inputs = $('input[type=checkbox][name="' + e.target.name + '"]');
    const $targetInp = $inputs.filter('[data-message-value-missing]');
    if($inputs.filter(':checked').length) {
        $targetInp.removeAttr('required');
        $form.find('label.error').html('');
    } else {
        $targetInp.attr('required', 'required');
    }
});

To make this work, set the data-message-value-missing and the required on only one (the last) input:

<ul>
   <li><input name="BoxSelect[]" type="checkbox" value="Box 1"><label>Box 1</label></li>
   <li><input name="BoxSelect[]" type="checkbox" value="Box 2"><label>Box 2</label></li>
   <li><input name="BoxSelect[]" type="checkbox" value="Box 3"><label>Box 3</label></li>
   <li><input name="BoxSelect[]" type="checkbox" value="Box 4" required data-message-value-missing="Select at least one"><label>Box 4</label></li>
</ul>

I excluded the code to handle the checkValidity(), etc. Seems beyond the scope of this question...

I use gitk to see the difference:

gitk k73ud..dj374

It has a GUI mode so that reviewing is easier.

You can use Target-specific Variable Values. Example:

CXXFLAGS = -g3 -gdwarf2
CCFLAGS = -g3 -gdwarf2

all: executable

debug: CXXFLAGS += -DDEBUG -g
debug: CCFLAGS += -DDEBUG -g
debug: executable

executable: CommandParser.tab.o CommandParser.yy.o Command.o
    $(CXX) -o output CommandParser.yy.o CommandParser.tab.o Command.o -lfl

CommandParser.yy.o: CommandParser.l 
    flex -o CommandParser.yy.c CommandParser.l
    $(CC) -c CommandParser.yy.c

Remember to use $(CXX) or $(CC) in all your compile commands.

Then, 'make debug' will have extra flags like -DDEBUG and -g where as 'make' will not.

On a side note, you can make your Makefile a lot more concise like other posts had suggested.

You can write an extension to use it with all the UIViews eg. UIButton, UILabel, UIImageView etc. You can customise my following method as per your requirement, but I think it will work well for you.

extension UIView{

    func setBorder(radius:CGFloat, color:UIColor = UIColor.clearColor()) -> UIView{
        var roundView:UIView = self
        roundView.layer.cornerRadius = CGFloat(radius)
        roundView.layer.borderWidth = 1
        roundView.layer.borderColor = color.CGColor
        roundView.clipsToBounds = true
        return roundView
    }
}

Usage:

btnLogin.setBorder(7, color: UIColor.lightGrayColor())
imgViewUserPick.setBorder(10)

Try with below logic

driver.get("http://www.labmultis.info/jpecka.portal-exdrazby/index.php?c1=2&a=s&aa=&ta=1");

List<WebElement> allElements=driver.findElements(By.cssSelector(".list.list-categories li"));

for(WebElement ele :allElements) {
    System.out.println("Name + Number===>"+ele.getText());
    String s=ele.getText();
    s=s.substring(s.indexOf("(")+1, s.indexOf(")"));
    System.out.println("Number==>"+s);
}

====Output======
Name + Number===>Vše (950)
Number==>950
Name + Number===>Byty (181)
Number==>181
Name + Number===>Domy (512)
Number==>512
Name + Number===>Pozemky (172)
Number==>172
Name + Number===>Chaty (28)
Number==>28
Name + Number===>Zemedelské objekty (5)
Number==>5
Name + Number===>Komercní objekty (30)
Number==>30
Name + Number===>Ostatní (22)
Number==>22

In Java, the optimizations are usually done at the JVM level. At runtime, the JVM perform some "complicated" analysis to determine which methods to inline. It can be aggressive in inlining, and the Hotspot JVM actually can inline non-final methods.

The java compilers almost never inline any method call (the JVM does all of that at runtime). They do inline compile time constants (e.g. final static primitive values). But not methods.

For more resources:

1. Article: The Java HotSpot Performance Engine: Method Inlining Example

2. Wiki: Inlining in OpenJDK, not fully populated but contains links to useful discussions.

Simply call list on the generator.

lst = list(gen)
lst

Be aware that this affects the generator which will not return any further items.

You also cannot directly call list in IPython, as it conflicts with a command for listing lines of code.

Tested on this file:

def gen():
    yield 1
    yield 2
    yield 3
    yield 4
    yield 5
import ipdb
ipdb.set_trace()

g1 = gen()

text = "aha" + "bebe"

mylst = range(10, 20)

which when run:

$ python code.py 
> /home/javl/sandbox/so/debug/code.py(10)<module>()
      9 
---> 10 g1 = gen()
     11 

ipdb> n
> /home/javl/sandbox/so/debug/code.py(12)<module>()
     11 
---> 12 text = "aha" + "bebe"
     13 

ipdb> lst = list(g1)
ipdb> lst
[1, 2, 3, 4, 5]
ipdb> q
Exiting Debugger.

General method for escaping function/variable/debugger name conflicts

There are debugger commands p and pp that will print and prettyprint any expression following them.

So you could use it as follows:

$ python code.py 
> /home/javl/sandbox/so/debug/code.py(10)<module>()
      9 
---> 10 g1 = gen()
     11 

ipdb> n
> /home/javl/sandbox/so/debug/code.py(12)<module>()
     11 
---> 12 text = "aha" + "bebe"
     13 

ipdb> p list(g1)
[1, 2, 3, 4, 5]
ipdb> c

There is also an exec command, called by prefixing your expression with !, which forces debugger to take your expression as Python one.

ipdb> !list(g1)
[]

For more details see help p, help pp and help exec when in debugger.

ipdb> help exec
(!) statement
Execute the (one-line) statement in the context of
the current stack frame.
The exclamation point can be omitted unless the first word
of the statement resembles a debugger command.
To assign to a global variable you must always prefix the
command with a 'global' command, e.g.:
(Pdb) global list_options; list_options = ['-l']

I'm not sure about what you mean by "I have no access to image" But if you have access to parent div you can do the following:

Firs give id or class to your div:

<div class="parent">
   <img src="http://someimage.jpg">
</div>

Than add this to your css:

.parent {
   width: 42px; /* I took the width from your post and placed it in css */
   height: 42px;
}

/* This will style any <img> element in .parent div */
.parent img {
   height: 100%;
   width: 100%;
}

version 4.8.0

$('textarea').data('ckeditorInstance').getData();

You can also use $("ul li:first-child") to only get the direct children of the UL.

I agree though, you need an ID or something else to identify the main UL otherwise it will just select them all. If you had a div with an ID around the UL the easiest thing to do would be$("#someDiv > ul > li")

Try this:

UIImageView *separator = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"separator.png"]];
[cell.contentView addSubview: separator];

That's an example of how I got it to work pretty well.

Remember to set the separator style for the table view to none.

This will create an alias st for status:

git config --add alias.st status

You have to make sure the application is uninstalled.

In your phone, try going to settings/applications and show the list of all your installed applications, then make sure the application is uninstalled for all users (in my case I had uninstalled the application but still for others).

ul {
      text-align: center;
      list-style: inside;
    }

The simplest way that I go about this is to force add a file. It will be accounted for in git even if it is buried or nested inside a git-ignored subdirectory tree.

For example:

x64 folder is excluded in .gitignore:

x64/

But you want to include the file myFile.py located in x64/Release/ directory. Then you have to:

git add -f x64/Release/myFile.py

You can do this for multiple files of files that match a pattern e.g.

git add -f x64/Release/myFile*.py

and so on.

You have to declare the function before you use it. If the function name appears before its declaration, C compiler will follow certain rules and makes the declaration itself. If it is wrong, you will get that error.

You have two options: (1) define it before you use it, or (2) use forward declaration without implementation. For example:

char *do_something(char *dest, const char *src);

Note the semicolon at the end.

Another way (not mentioned here yet) is with Flexbox.

Just add the following code to the container element:

display: flex;
justify-content: center; /* align horizontal */
align-items: center; /* align vertical */

Flexbox demo 1

.box {_x000D_
  height: 150px;_x000D_
  width: 400px;_x000D_
  background: #000;_x000D_
  font-size: 24px;_x000D_
  font-style: oblique;_x000D_
  color: #FFF;_x000D_
  text-align: center;_x000D_
  padding: 0 20px;_x000D_
  margin: 20px;_x000D_
  display: flex;_x000D_
  justify-content: center;_x000D_
  /* align horizontal */_x000D_
  align-items: center;_x000D_
  /* align vertical */_x000D_
}

<div class="box">_x000D_
  Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh_x000D_
</div>

Alternatively, instead of aligning the content via the container, flexbox can also center the a flex item with an auto margin when there is only one flex-item in the flex container (like the example given in the question above).

So to center the flex item both horizontally and vertically just set it with margin:auto

Flexbox Demo 2

.box {_x000D_
  height: 150px;_x000D_
  width: 400px;_x000D_
  background: #000;_x000D_
  font-size: 24px;_x000D_
  font-style: oblique;_x000D_
  color: #FFF;_x000D_
  text-align: center;_x000D_
  padding: 0 20px;_x000D_
  margin: 20px;_x000D_
  display: flex;_x000D_
}_x000D_
.box span {_x000D_
  margin: auto;_x000D_
}

<div class="box">_x000D_
  <span>margin:auto on a flex item centers it both horizontally and vertically</span> _x000D_
</div>

NB: All the above applies to centering items while laying them out in horizontal rows. This is also the default behavior, because by default the value for flex-direction is row. If, however flex-items need to be laid out in vertical columns, then flex-direction: column should be set on the container to set the main-axis as column and additionally the justify-content and align-items properties now work the other way around with justify-content: center centering vertically and align-items: center centering horizontally)

flex-direction: column demo

.box {_x000D_
  height: 150px;_x000D_
  width: 400px;_x000D_
  background: #000;_x000D_
  font-size: 18px;_x000D_
  font-style: oblique;_x000D_
  color: #FFF;_x000D_
  display: flex;_x000D_
  flex-direction: column;_x000D_
  justify-content: center;_x000D_
  /* vertically aligns items */_x000D_
  align-items: center;_x000D_
  /* horizontally aligns items */_x000D_
}_x000D_
p {_x000D_
  margin: 5px;_x000D_
  }

<div class="box">_x000D_
  <p>_x000D_
    When flex-direction is column..._x000D_
  </p>_x000D_
  <p>_x000D_
    "justify-content: center" - vertically aligns_x000D_
  </p>_x000D_
  <p>_x000D_
    "align-items: center" - horizontally aligns_x000D_
  </p>_x000D_
</div>

A good place to start with Flexbox to see some of its features and get syntax for maximum browser support is flexyboxes

Also, browser support nowadays is very good: caniuse

For cross-browser compatibility for display: flex and align-items, you can use the following:

display: -webkit-box;
display: -webkit-flex;
display: -moz-box;
display: -ms-flexbox;
display: flex;
-webkit-flex-align: center;
-ms-flex-align: center;
-webkit-align-items: center;
align-items: center;

Combining a couple answers above:

function isVisible (ele) {
    var style = window.getComputedStyle(ele);
    return  style.width !== "0" &&
    style.height !== "0" &&
    style.opacity !== "0" &&
    style.display!=='none' &&
    style.visibility!== 'hidden';
}

Like AlexZ said, this may be slower than some of your other options if you know more specifically what you're looking for, but this should catch all of the main ways elements are hidden.

But, it also depends what counts as visible for you. Just for example, a div's height can be set to 0px but the contents still visible depending on the overflow properties. Or a div's contents could be made the same color as the background so it is not visible to users but still rendered on the page. Or a div could be moved off screen or hidden behind other divs, or it's contents could be non-visible but the border still visible. To a certain extent "visible" is a subjective term.

#include"stdio.h"//rmv coding for randam number access

#include"conio.h"

#include"time.h"

void main()
{
    time_t t;
    int rmvivek;

    srand(time(&t));
    rmvivek=1;

    while(rmvivek<=5)
    {
        printf("%c\t",rand()%10);
        rmvivek++;
    }
    getch();
}

Just to add that even though there are few usecases where you should use them, spawnSync / execFileSync / execSync were added to node.js in these commits: https://github.com/joyent/node/compare/d58c206862dc...e8df2676748e

Better to use Request.Url.OriginalString than Request.Url.ToString() (according to MSDN)

You only have to edit your profile file like this:

sudo su
vim ~/.profile

and put this at the end of the file:

export ANDROID_HOME=/home/(user name)/Android/Sdk
export PATH=$PATH:/tools
export PATH=$PATH:/platform-tools

Save and close the file and do:

cd ~
source .profile

now if you do:

echo $ANDROID_HOME

it should show you something like this:

/home/(user name)/Android/Sdk

C# is a strong Object Oriented programming language that is mostly built on the .NET framework.

C# is the airplane and .NET is the runway ;)

<div runat="server"> is mapped to a HtmlGenericControl. Try using BtnventCss.Attributes.Add("class", "hom_but_a");

For me what works when I change the PATH is: exec "$BASH" --login

Dollar signs around the variable do not work on my Vista machine, but percent signs do. Also note that a trailing space on the "set" line will show up between the prompt and user input.

I'm not familiar with postgresql, but in SQL Server or Oracle, using a subquery would work like below (in Oracle, the SELECT 0 would be SELECT 0 FROM DUAL)

SELECT SUM(sub.value)
FROM
( 
  SELECT SUM(columnA) as value FROM my_table
  WHERE columnB = 1
  UNION
  SELECT 0 as value
) sub

Maybe this would work for postgresql too?

this.props.history.push("/url")

If you have not found this.props.history available in your component , then try this

import {withRouter} from 'react-router-dom'
export default withRouter(MyComponent)  

If your string is a file path, as in your example, you can also use Unix style file paths:

string foo = "D:/Projects/Some/Kind/Of/Pathproblem/wuhoo.xml";

But the other answers have the more general solutions to string escaping in C#.

For checking one date is after another by using isAfter() method.

moment('2020-01-20').isAfter('2020-01-21'); // false
moment('2020-01-20').isAfter('2020-01-19'); // true

For checking one date is before another by using isBefore() method.

moment('2020-01-20').isBefore('2020-01-21'); // true
moment('2020-01-20').isBefore('2020-01-19'); // false

For checking one date is same as another by using isSame() method.

moment('2020-01-20').isSame('2020-01-21'); // false
moment('2020-01-20').isSame('2020-01-20'); // true

This web.config setup works to remove all unnecessary headers from the ASP.NET response (at least starting from IIS 10):

<system.web>
    <!-- Removes version headers from response -->
    <httpRuntime enableVersionHeader="false" />
</system.web>

<system.webServer>
    <httpProtocol>
        <customHeaders>
            <!--Removes X-Powered-By header from response -->
            <clear />
        </customHeaders>
    </httpProtocol>

    <security>
        <!--Removes Server header from response-->
        <requestFiltering removeServerHeader ="true" />
    </security>
</system.webServer>

Please note that this hides all the headers for the "application", as do all the other approaches. If you e.g. reach some default page or an error page generated by the IIS itself or ASP.NET outside your application these rules won't apply. So ideally they should be on the root level in IIS and that sill may leave some error responses to the IIS itself.

P.S. There is a bug in IIS 10 that makes it sometimes show the server header even with correct config. It should be fixed by now, but IIS/Windows has to be updated.

Postgres hasn't implemented an equivalent to INSERT OR REPLACE. From the ON CONFLICT docs (emphasis mine):

It can be either DO NOTHING, or a DO UPDATE clause specifying the exact details of the UPDATE action to be performed in case of a conflict.

Though it doesn't give you shorthand for replacement, ON CONFLICT DO UPDATE applies more generally, since it lets you set new values based on preexisting data. For example:

INSERT INTO users (id, level)
VALUES (1, 0)
ON CONFLICT (id) DO UPDATE
SET level = users.level + 1;

ProjectionList pl = Projections.projectionList();
pl.add(Projections.property("id"));
pl.add(Projections.sqlProjection("abs(`pageNo`-" + pageNo + ") as diff", new String[] {"diff"}, types ), diff); ---- solution
crit.addOrder(Order.asc("diff"));
crit.setProjection(pl);

You can use the listings package. It supports many different languages and there are lots of options for customising the output.

\documentclass{article}
\usepackage{listings}

\begin{document}
\begin{lstlisting}[language=html]
<html>
    <head>
        <title>Hello</title>
    </head>
    <body>Hello</body>
</html>
\end{lstlisting}
\end{document}

Have a look at https://wiki.debian.org/JavaPackage At the bottom of this page an other method is descibed using a command from the java-common package

This bash script will accept the root password as option and optimize it one by one, with status output:

#!/bin/bash

if [ -z "$1" ] ; then
  echo
  echo "ERROR: root password Parameter missing."
  exit
fi
MYSQL_USER=root
MYSQL_PASS=$1
MYSQL_CONN="-u${MYSQL_USER} -p${MYSQL_PASS}"
TBLLIST=""
COMMA=""
SQL="SELECT CONCAT(table_schema,'.',table_name) FROM information_schema.tables WHERE"
SQL="${SQL} table_schema NOT IN ('information_schema','mysql','performance_schema')"
for DBTB in `mysql ${MYSQL_CONN} -ANe"${SQL}"`
do
    echo OPTIMIZE TABLE "${DBTB};"
    SQL="OPTIMIZE TABLE ${DBTB};"
    mysql ${MYSQL_CONN} -ANe"${SQL}"
done

Because the bootstrap-select is a bootstrap component and therefore you need to include it in your code as you did for your V3

NOTE: this component only works in boostrap-4 since version 1.13.0

$('select').selectpicker();

<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css">_x000D_
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.13.1/css/bootstrap-select.css" />_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.bundle.min.js"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.13.1/js/bootstrap-select.min.js"></script>_x000D_
_x000D_
_x000D_
_x000D_
<select class="selectpicker" multiple data-live-search="true">_x000D_
  <option>Mustard</option>_x000D_
  <option>Ketchup</option>_x000D_
  <option>Relish</option>_x000D_
</select>

These two style of filtering are equivalent in most cases, but when query on objects base on ForeignKey or ManyToManyField, they are slightly different.

Examples from the documentation.

model
Blog to Entry is a one-to-many relation.

from django.db import models

class Blog(models.Model):
    ...

class Entry(models.Model):
    blog = models.ForeignKey(Blog)
    headline = models.CharField(max_length=255)
    pub_date = models.DateField()
    ...

objects
Assuming there are some blog and entry objects here.

queries

Blog.objects.filter(entry__headline_contains='Lennon', 
    entry__pub_date__year=2008)
Blog.objects.filter(entry__headline_contains='Lennon').filter(
    entry__pub_date__year=2008)  
    

For the 1st query (single filter one), it match only blog1.

For the 2nd query (chained filters one), it filters out blog1 and blog2.
The first filter restricts the queryset to blog1, blog2 and blog5; the second filter restricts the set of blogs further to blog1 and blog2.

And you should realize that

We are filtering the Blog items with each filter statement, not the Entry items.

So, it's not the same, because Blog and Entry are multi-valued relationships.

Reference: https://docs.djangoproject.com/en/1.8/topics/db/queries/#spanning-multi-valued-relationships
If there is something wrong, please correct me.

Edit: Changed v1.6 to v1.8 since the 1.6 links are no longer available.

There are no unsigned integers in Java. All integers are signed and in big endian.

On the C side the each byte has tne LSB at the start is on the left and the MSB at the end.

It sounds like you are using LSB as Least significant bit, are you? LSB usually stands for least significant byte. Endianness is not bit based but byte based.

To convert from unsigned byte to a Java integer:

int i = (int) b & 0xFF;

To convert from unsigned 32-bit little-endian in byte[] to Java long (from the top of my head, not tested):

long l = (long)b[0] & 0xFF;
l += ((long)b[1] & 0xFF) << 8;
l += ((long)b[2] & 0xFF) << 16;
l += ((long)b[3] & 0xFF) << 24;

Hopefully, this will help...

interface Param {
    title: string;
    callback: (error: Error, data: string) => void;
}

Or in a Function

let myfunction = (title: string, callback: (error: Error, data: string) => void): string => {

    callback(new Error(`Error Message Here.`), "This is callback data.");
    return title;

}

For single value the datetime.strptime method is the fastest

import arrow
from datetime import datetime
import pandas as pd

l = ['24052010']

%timeit _ = list(map(lambda x: datetime.strptime(x, '%d%m%Y').date(), l))
6.86 µs ± 56.5 ns per loop (mean ± std. dev. of 7 runs, 100000 loops each)

%timeit _ = list(map(lambda x: x.date(), pd.to_datetime(l, format='%d%m%Y')))
305 µs ± 6.32 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each)

%timeit _ = list(map(lambda x: arrow.get(x, 'DMYYYY').date(), l))
46 µs ± 978 ns per loop (mean ± std. dev. of 7 runs, 10000 loops each)

For a list of values the pandas pd.to_datetime is the fastest

l = ['24052010'] * 1000

%timeit _ = list(map(lambda x: datetime.strptime(x, '%d%m%Y').date(), l))
6.32 ms ± 89.6 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)

%timeit _ = list(map(lambda x: x.date(), pd.to_datetime(l, format='%d%m%Y')))
1.76 ms ± 27.3 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each)

%timeit _ = list(map(lambda x: arrow.get(x, 'DMYYYY').date(), l))
44.5 ms ± 522 µs per loop (mean ± std. dev. of 7 runs, 10 loops each)

For ISO8601 datetime format the ciso8601 is a rocket

import ciso8601

l = ['2010-05-24'] * 1000

%timeit _ = list(map(lambda x: ciso8601.parse_datetime(x).date(), l))
241 µs ± 3.24 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each)

The problem is that the evaluation of Click() times out on your build env.. you might want to dig into what happens on Click().

Also, try adding Retrys for the Click() because occssionally the evaluations take longer time depending on network speeds, etc

i am using v3.1.3 and i had to use data('DateTimePicker') like this

var fromE = $( "#" + fromInput );
var toE = $( "#" + toInput );
$('.form-datepicker').datetimepicker(dtOpts);

$('.form-datepicker').on('change', function(e){
   var isTo = $(this).attr('name') === 'to';

   $( "#" + ( isTo ? fromInput : toInput  ) )
      .data('DateTimePicker')[ isTo ? 'setMaxDate' : 'setMinDate' ](moment($(this).val(), 'DD/MM/YYYY'))
});

Use This for MAC users

keytool -list -v -keystore ~/.android/debug.keystore -alias androiddebugkey -storepass android -keypass android

The default value of error_reporting flag is E_ALL & ~E_NOTICE if not set in php.ini. But in some installation (particularly installations targeting development environments) has E_ALL | E_STRICT set as value of this flag (this is the recommended value during development). In some cases, specially when you'll want to run some open source projects, that was developed prior to PHP 5.3 era and not yet updated with best practices defined by PHP 5.3, in your development environment, you'll probably run into getting some messages like you are getting. The best way to cope up on this situation, is to set only E_ALL as the value of error_reporting flag, either in php.ini or in code (probably in a front-controller like index.php in web-root as follows:

if(defined('E_STRICT')){
    error_reporting(E_ALL);
}

You have writer.close(); in your code. So bash receives EOF on its stdin and exits. Then you get Broken pipe when trying to read from the stdoutof the defunct bash.

I do it this way. It's Simple.

import java.util.Map;
import org.json.JSONObject;
import com.google.gson.Gson;

public class Main {
    public static void main(String[] args) {
        JSONObject jsonObj = new JSONObject("{ \"f1\":\"v1\"}");
        @SuppressWarnings("unchecked")
        Map<String, String> map = new Gson().fromJson(jsonObj.toString(),Map.class);
        System.out.println(map);
    }
}

Like this:

String versionRelease = BuildConfig.VERSION_NAME;

versionRelease :- 2.1.17

Please make sure your import package is correct ( import package your_application_package_name, otherwise it will not work properly).

It's a descriptive part of the URL that is there to make it more human descriptive, but without necessarily being required by the web server - in What is a "slug" in Django? the slug is 'in-django-what-is-a-slug', but the slug is not used to determine the page served (on this site at least)

Easiest way: search for javac.exe in windows search bar. Then copy and paste the entire folder name and add it into the environmental variables path in advanced system settings.

With CSS you can simulate object-fit: [cover|contain];. It's use transform and [max|min]-[width|height]. It's not perfect. That not work in one case: if the image is wider and shorter than the container.

.img-ctr{_x000D_
  background: red;/*visible only in contain mode*/_x000D_
  border: 1px solid black;_x000D_
  height: 300px;_x000D_
  width: 600px;_x000D_
  overflow: hidden;_x000D_
  position: relative;_x000D_
  display: block;_x000D_
}_x000D_
.img{_x000D_
  display: block;_x000D_
_x000D_
  /*contain:*/_x000D_
  /*max-height: 100%;_x000D_
  max-width: 100%;*/_x000D_
  /*--*/_x000D_
_x000D_
  /*cover (not work for images wider and shorter than the container):*/_x000D_
  min-height: 100%;_x000D_
  width: 100%;_x000D_
  /*--*/_x000D_
_x000D_
  position: absolute;_x000D_
  top: 50%;_x000D_
  left: 50%;_x000D_
  transform: translate(-50%, -50%);_x000D_
}

<p>Large square:_x000D_
<span class="img-ctr"><img class="img" src="http://placehold.it/1000x1000"></span>_x000D_
</p>_x000D_
<p>Small square:_x000D_
<span class="img-ctr"><img class="img" src="http://placehold.it/100x100"></span>_x000D_
</p>_x000D_
<p>Large landscape:_x000D_
<span class="img-ctr"><img class="img" src="http://placehold.it/2000x1000"></span>_x000D_
</p>_x000D_
<p>Small landscape:_x000D_
<span class="img-ctr"><img class="img" src="http://placehold.it/200x100"></span>_x000D_
</p>_x000D_
<p>Large portrait:_x000D_
<span class="img-ctr"><img class="img" src="http://placehold.it/1000x2000"></span>_x000D_
</p>_x000D_
<p>Small portrait:_x000D_
<span class="img-ctr"><img class="img" src="http://placehold.it/100x200"></span>_x000D_
</p>_x000D_
<p>Ultra thin portrait:_x000D_
<span class="img-ctr"><img class="img" src="http://placehold.it/200x1000"></span>_x000D_
</p>_x000D_
<p>Ultra wide landscape (images wider and shorter than the container):_x000D_
<span class="img-ctr"><img class="img" src="http://placehold.it/1000x200"></span>_x000D_
</p>

Maybe also try this? PDF Focus

This .Net library allows you to solve the problem :)

This code will help (Convert 1000 PDF files to 300-dpi TIFF files in C#):

    SautinSoft.PdfFocus f = new SautinSoft.PdfFocus();

    string[] pdfFiles = Directory.GetFiles(@"d:\Folder with 1000 pdfs\", "*.pdf");
    string folderWithTiffs = @"d:\Folder with TIFFs\";

    foreach (string pdffile in pdfFiles)
    {
        f.OpenPdf(pdffile);

        if (f.PageCount > 0)
        {
            //save all pages to tiff files with 300 dpi
            f.ToImage(folderWithTiffs, Path.GetFileNameWithoutExtension(pdffile), System.Drawing.Imaging.ImageFormat.Tiff, 300);
        }
        f.ClosePdf();
    }

You need to understand the difference between the visible address of an email, and the delivery.

msg["To"] is essentially what is printed on the letter. It doesn't actually have any effect. Except that your email client, just like the regular post officer, will assume that this is who you want to send the email to.

The actual delivery however can work quite different. So you can drop the email (or a copy) into the post box of someone completely different.

There are various reasons for this. For example forwarding. The To: header field doesn't change on forwarding, however the email is dropped into a different mailbox.

The smtp.sendmail command now takes care of the actual delivery. email.Message is the contents of the letter only, not the delivery.

In low-level SMTP, you need to give the receipients one-by-one, which is why a list of adresses (not including names!) is the sensible API.

For the header, it can also contain for example the name, e.g. To: First Last <[email protected]>, Other User <[email protected]>. Your code example therefore is not recommended, as it will fail delivering this mail, since just by splitting it on , you still not not have the valid adresses!

Try to consolidate the syntax in a single line. this will clear the error

Run your java application with the following command line parameters:

-Dcom.sun.management.jmxremote.port=8855
-Dcom.sun.management.jmxremote.authenticate=false
-Dcom.sun.management.jmxremote.ssl=false

It is important to use the -Dcom.sun.management.jmxremote.ssl=false parameter if you don't want to setup digital certificates on the jmx host.

If you started your application on a machine having IP address 192.168.0.1, open jconsole, put 192.168.0.1:8855 in the Remote Process field, and click Connect.

On many devices (such as the iPhone), it prevents the user from using the browser's zoom. If you have a map and the browser does the zooming, then the user will see a big ol' pixelated image with huge pixelated labels. The idea is that the user should use the zooming provided by Google Maps. Not sure about any interaction with your plugin, but that's what it's there for.

More recently, as @ehfeng notes in his answer, Chrome for Android (and perhaps others) have taken advantage of the fact that there's no native browser zooming on pages with a viewport tag set like that. This allows them to get rid of the dreaded 300ms delay on touch events that the browser takes to wait and see if your single touch will end up being a double touch. (Think "single click" and "double click".) However, when this question was originally asked (in 2011), this wasn't true in any mobile browser. It's just added awesomeness that fortuitously arose more recently.

Use numpy.sum. for your case, it is

sum = a.sum(axis=0)

The compiler needs to know the size of the second dimension in your two dimensional array. For example:

void print_graph(g_node graph_node[], double weight[][5], int nodes);

I can't find toByteArray() as @atrioom said, so I use StringWriter, please try:

public void writeListToJsonArray() throws IOException {  

    //your list
    final List<Event> list = new ArrayList<Event>(2);
    list.add(new Event("a1","a2"));
    list.add(new Event("b1","b2"));


    final StringWriter sw =new StringWriter();
    final ObjectMapper mapper = new ObjectMapper();
    mapper.writeValue(sw, list);
    System.out.println(sw.toString());//use toString() to convert to JSON

    sw.close(); 
}

Or just use ObjectMapper#writeValueAsString:

    final ObjectMapper mapper = new ObjectMapper();
    System.out.println(mapper.writeValueAsString(list));

FYI - if anyone experience issues with launching Apache, and getting errors about

/usr/sbin/apachectl: line 82: ulimit: open files: cannot modify limit: Invalid argument

it's because of a recent update to Apache in Snow Leopard. The fix is easy, just open /usr/sbin/apachectl and set ULIMIT=""

http://blog.deversus.com/2010/11/mac-os-1065-apachectl-usrsbinapachectl-line-82-ulimit-open-files-cannot-modify-limit-invalid-argument/

Here's my solution, i would love anyone's opinion on this, it's simple for beginners

import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.KeySpec;
import java.util.Base64;
import java.util.Base64.Encoder;
import java.util.Scanner;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.PBEKeySpec;

public class Cryptography {

    public static void main(String[] args) throws NoSuchAlgorithmException, InvalidKeySpecException {
        Encoder encoder = Base64.getUrlEncoder().withoutPadding();
        System.out.print("Password: ");
        String strPassword = new Scanner(System.in).nextLine();
        byte[] bSalt = Salt();
        String strSalt = encoder.encodeToString(bSalt); // Byte to String
        System.out.println("Salt: " + strSalt);
        System.out.println("String to be hashed: " + strPassword + strSalt);
        String strHash = encoder.encodeToString(Hash(strPassword, bSalt)); // Byte to String
        System.out.println("Hashed value (Password + Salt value): " + strHash);
    }

    private static byte[] Salt() {
        SecureRandom random = new SecureRandom();
        byte salt[] = new byte[6];
        random.nextBytes(salt);
        return salt;
    }

    private static byte[] Hash(String password, byte[] salt) throws NoSuchAlgorithmException, InvalidKeySpecException {
        KeySpec spec = new PBEKeySpec(password.toCharArray(), salt, 65536, 128);
        SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
        byte[] hash = factory.generateSecret(spec).getEncoded();
        return hash;
    }

}

You can validate by just decoding the strSalt and using the same hash method:

public static void main(String[] args) throws NoSuchAlgorithmException, InvalidKeySpecException {
        Encoder encoder = Base64.getUrlEncoder().withoutPadding();
        Decoder decoder = Base64.getUrlDecoder();
        System.out.print("Password: ");
        String strPassword = new Scanner(System.in).nextLine();
        String strSalt = "Your Salt String Here";
        byte[] bSalt = decoder.decode(strSalt); // String to Byte
        System.out.println("Salt: " + strSalt);
        System.out.println("String to be hashed: " + strPassword + strSalt);
        String strHash = encoder.encodeToString(Hash(strPassword, bSalt)); // Byte to String
        System.out.println("Hashed value (Password + Salt value): " + strHash);
    }

1. Can someone give a simple definition of what Record is?

A Record<K, T> is an object type whose property keys are K and whose property values are T. That is, keyof Record<K, T> is equivalent to K, and Record<K, T>[K] is (basically) equivalent to T.

2. Is Record<K,T> merely a way of saying "all properties on this object will have type T"? Probably not all objects, since K has some purpose...

As you note, K has a purpose... to limit the property keys to particular values. If you want to accept all possible string-valued keys, you could do something like Record<string, T>, but the idiomatic way of doing that is to use an index signature like { [k: string]: T }.

3. Does the K generic forbid additional keys on the object that are not K, or does it allow them and just indicate that their properties are not transformed to T?

It doesn't exactly "forbid" additional keys: after all, a value is generally allowed to have properties not explicitly mentioned in its type... but it wouldn't recognize that such properties exist:

declare const x: Record<"a", string>;
x.b; // error, Property 'b' does not exist on type 'Record<"a", string>'

and it would treat them as excess properties which are sometimes rejected:

declare function acceptR(x: Record<"a", string>): void;
acceptR({a: "hey", b: "you"}); // error, Object literal may only specify known properties

and sometimes accepted:

const y = {a: "hey", b: "you"};
acceptR(y); // okay

4. With the given example:

   type ThreeStringProps = Record<'prop1' | 'prop2' | 'prop3', string>
   

   Is it exactly the same as this?:

   type ThreeStringProps = {prop1: string, prop2: string, prop3: string}
   

Yes!

Hope that helps. Good luck!

You can set it in the config as others have said, or you can set in on an individual instance of the serializer like:

var js = new JavaScriptSerializer() { MaxJsonLength = int.MaxValue };

Simple, use static.

In activity you have the method you want to call:

private static String name = "Robert";

...

public static String getData() {
    return name;
}

And in your activity where you make the call:

private static String name;

...

name = SplashActivity.getData();

rather than doing complicated stuff, copy your repo (on your computer) to another place. delete the large file. do a couple of push and pull. Then some of your files will be messed up having things like "<<<<<< HEAD". Just copy your backup into the old folder on the disk. Do another add, commit, push!

There is also the approach of organizing the folders not by the structure of the framework, but by the structure of the application's function. There is a github starter Angular/Express application that illustrates this called angular-app.

Without an access modifier, a class member is accessible throughout the package in which it's declared. You can learn more from the Java Language Specification, §6.6.

Members of an interface are always publicly accessible, whether explicitly declared or not.

you can use use numpy.random module, you can get array of random number in shape of your choice you want

>>> import numpy as np
>>> np.random.random(1)[0]
0.17425892129128229
>>> np.random.random((3,2))
array([[ 0.7978787 ,  0.9784473 ],
       [ 0.49214277,  0.06749958],
       [ 0.12944254,  0.80929816]])
>>> np.random.random((3,1))
array([[ 0.86725993],
       [ 0.36869585],
       [ 0.2601249 ]])
>>> np.random.random((4,1))
array([[ 0.87161403],
       [ 0.41976921],
       [ 0.35714702],
       [ 0.31166808]])
>>> np.random.random_sample()
0.47108547995356098

Queue<String> qe=new LinkedList<String>();

qe.add("b");
qe.add("a");
qe.add("c");

Since Queue is an interface, you can't create an instance of it as you illustrated

I know this is a bit late, but for people struggling with this, you can use the following functions:

• Turn any number positive

  let x =  54;
  let y = -54;
  let resultx =  Math.abs(x); //  54
  let resulty =  Math.abs(y); //  54
  

• Turn any number negative

  let x =  54;
  let y = -54;
  let resultx = -Math.abs(x); // -54
  let resulty = -Math.abs(y); // -54
  

• Invert any number

  let x =  54;
  let y = -54;
  let resultx = -(x);         // -54
  let resulty = -(y);         //  54
  

Try this. Oracle has this feature to distinguish the millennium years..

As you mentioned, if your column is a varchar, then the below query will yield you 1989..

select to_date(column_name,'dd/mm/rr') from table1;

When the format rr is used in year, the following would be done by oracle.

if rr->00 to 49 ---> result will be 2000 - 2049, if rr->50 to 99 ---> result will be 1950 - 1999

If wont work in case you have something like : novalidate="novalidate" attached to your form.

Wrapping the existing formula in IFERROR will not achieve:

the average of cells that contain non-zero, non-blank values.

I suggest trying:

=if(ArrayFormula(isnumber(K23:M23)),AVERAGEIF(K23:M23,"<>0"),"")

I have changed in my activity but effected. Here is my code:

View layout = getLayoutInflater().inflate(R.layout.list_group,null);
        try {
            LinearLayout linearLayout = (LinearLayout) layout.findViewById(R.id.ldrawernav);
            linearLayout.setBackgroundColor(Color.parseColor("#ffffff"));
        }
        catch (Exception e) {

        }

    }

For importing database file in .sql.gz format, remove definer and import using below command

zcat path_to_db_to_import.sql.gz | sed -e 's/DEFINER[ ]*=[ ]*[^*]*\*/\*/' | mysql -u user -p new_db_name

1. Earlier, export database in .sql.gz format using below command.

   mysqldump -u user -p old_db | gzip -9 > path_to_db_exported.sql.gz;

2. Import that exported database and removing definer using below command,

   zcat path_to_db_exported.sql.gz | sed -e 's/DEFINER[ ]*=[ ]*[^*]*\*/\*/' | mysql -u user -p new_db

ctype module with threading

i was using the tkinter messagebox but it would crash my code. i didn't want to find out why so i used the ctypes module instead.

for example:

import ctypes
ctypes.windll.user32.MessageBoxW(0, "Your text", "Your title", 1)

i got that code from Arkelis

i liked that it didn't crash the code so i worked on it and added a threading so the code after would run.

example for my code

import ctypes
import threading


def MessageboxThread(buttonstyle, title, text, icon):
    threading.Thread(
        target=lambda: ctypes.windll.user32.MessageBoxW(buttonstyle, text, title, icon)
    ).start()

messagebox(0, "Your title", "Your text", 1)

for button styles and icon numbers:

## Button styles:
# 0 : OK
# 1 : OK | Cancel
# 2 : Abort | Retry | Ignore
# 3 : Yes | No | Cancel
# 4 : Yes | No
# 5 : Retry | No
# 6 : Cancel | Try Again | Continue

## To also change icon, add these values to previous number
# 16 Stop-sign icon
# 32 Question-mark icon
# 48 Exclamation-point icon
# 64 Information-sign icon consisting of an 'i' in a circle

Perl-style regular expressions (which the Java regex engine is more or less based upon) treat the following characters as special characters:

.^$|*+?()[{\ have special meaning outside of character classes,

]^-\ have special meaning inside of character classes ([...]).

So you need to escape those (and only those) symbols depending on context (or, in the case of character classes, place them in positions where they can't be misinterpreted).

Needlessly escaping other characters may work, but some regex engines will treat this as syntax errors, for example \_ will cause an error in .NET.

Some others will lead to false results, for example \< is interpreted as a literal < in Perl, but in egrep it means "word boundary".

So write -?\d+\.\d+\$ to match 1.50$, -2.00$ etc. and [(){}[\]] for a character class that matches all kinds of brackets/braces/parentheses.

If you need to transform a user input string into a regex-safe form, use java.util.regex.Pattern.quote.

Further reading: Jan Goyvaert's blog RegexGuru on escaping metacharacters

In some cases, such as routing with a component that's wrapped with redux-form, replacing the Route component argument on this JSX element:

<Route path="speaker" component={Speaker}/>

With the Route render argument like the following, will fix issue:

<Route path="speaker" render={props => <Speaker {...props} />} />

SHGetKnownFolderPath:

Retrieves the full path of a known folder identified by the folder's KNOWNFOLDERID.

And, FOLDERID_CommonStartup:

Default Path %ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs\StartUp

There are also managed equivalents, but you haven't told us what you're programming in.

There are many options, for example:

import operator
index, value = max(enumerate(my_list), key=operator.itemgetter(1))

Here is another "more recursive" solution.

function perms(input) {
  var data = input.slice();
  var permutations = [];
  var n = data.length;

  if (n === 0) {
    return [
      []
    ];
  } else {
    var first = data.shift();
    var words = perms(data);
    words.forEach(function(word) {
      for (var i = 0; i < n; ++i) {
        var tmp = word.slice();
        tmp.splice(i, 0, first)
        permutations.push(tmp);
      }
    });
  }

  return permutations;
}

var str = 'ABC';
var chars = str.split('');
var result = perms(chars).map(function(p) {
  return p.join('');
});

console.log(result);

var output = window.document.getElementById('output');
output.innerHTML = result;

<div id="output"></div>

Output:

[ 'ABC', 'BAC', 'BCA', 'ACB', 'CAB', 'CBA' ]

gcc is a rich and complex "orchestrating" program that calls many other programs to perform its duties. For the specific purpose of seeing where #include "goo" and #include <zap> will search on your system, I recommend:

$ touch a.c
$ gcc -v -E a.c
 ...
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/include
 /usr/lib/gcc/i686-apple-darwin9/4.0.1/include
 /usr/include
 /System/Library/Frameworks (framework directory)
 /Library/Frameworks (framework directory)
End of search list.
# 1 "a.c"

This is one way to see the search lists for included files, including (if any) directories into which #include "..." will look but #include <...> won't. This specific list I'm showing is actually on Mac OS X (aka Darwin) but the commands I recommend will show you the search lists (as well as interesting configuration details that I've replaced with ... here;-) on any system on which gcc runs properly.

(int_variable).to_bytes(bytes_length, byteorder='big'|'little').hex()

For example:

>>> (434).to_bytes(4, byteorder='big').hex()
'000001b2'
>>> (434).to_bytes(4, byteorder='little').hex()
'b2010000'

This isn't added out of the box because the Angular team wants Angular 2 to run minified. OrderBy runs off of reflection which breaks with minification. Check out Miško Heverey's response on the matter.

I've taken the time to create an OrderBy pipe that supports both single and multi-dimensional arrays. It also supports being able to sort on multiple columns of the multi-dimensional array.

<li *ngFor="let person of people | orderBy : ['-lastName', 'age']">{{person.firstName}} {{person.lastName}}, {{person.age}}</li>

This pipe does allow for adding more items to the array after rendering the page, and still sort the arrays with the new items correctly.

I have a write up on the process here.

And here's a working demo: http://fuelinteractive.github.io/fuel-ui/#/pipe/orderby and https://plnkr.co/edit/DHLVc0?p=info

EDIT: Added new demo to http://fuelinteractive.github.io/fuel-ui/#/pipe/orderby

EDIT 2: Updated ngFor to new syntax

Suppose a 9800GT GPU:

• it has 14 multiprocessors (SM)
• each SM has 8 thread-processors (AKA stream-processors, SP or cores)
• allows up to 512 threads per block
• warpsize is 32 (which means each of the 14x8=112 thread-processors can schedule up to 32 threads)

https://www.tutorialspoint.com/cuda/cuda_threads.htm

A block cannot have more active threads than 512 therefore __syncthreads can only synchronize limited number of threads. i.e. If you execute the following with 600 threads:

func1();
__syncthreads();
func2();
__syncthreads();

then the kernel must run twice and the order of execution will be:

1. func1 is executed for the first 512 threads
2. func2 is executed for the first 512 threads
3. func1 is executed for the remaining threads
4. func2 is executed for the remaining threads

Note:

The main point is __syncthreads is a block-wide operation and it does not synchronize all threads.

I'm not sure about the exact number of threads that __syncthreads can synchronize, since you can create a block with more than 512 threads and let the warp handle the scheduling. To my understanding it's more accurate to say: func1 is executed at least for the first 512 threads.

Before I edited this answer (back in 2010) I measured 14x8x32 threads were synchronized using __syncthreads.

I would greatly appreciate if someone test this again for a more accurate piece of information.