you can try writing the command using 'sudo':

sudo mkdir DirName

You can try this before using job_titles string:

source = unicode(job_titles, 'utf-8')

I had the problem before, but it was solved. The main problem was that I mistakenly spell the int main() function. Instead of writing int main() I wrote int mian()....Cheers !

Finally, it turned out to be a missing artifact of solr that seemed to block all the rest of my build cycle.

I have no idea why mvn behaves like that, but upgrading to the latest version fixed it.

Try this one here: http://www.twinword.com/lemmatizer.php

I entered your query in the demo "cats running ran cactus cactuses cacti community communities" and got ["cat", "running", "run", "cactus", "cactus", "cactus", "community", "community"] with the optional flag ALL_TOKENS.

Sample Code

This is an API so you can connect to it from any environment. Here is what the PHP REST call may look like.

// These code snippets use an open-source library. http://unirest.io/php
$response = Unirest\Request::post([ENDPOINT],
  array(
    "X-Mashape-Key" => [API KEY],
    "Content-Type" => "application/x-www-form-urlencoded",
    "Accept" => "application/json"
  ),
  array(
    "text" => "cats running ran cactus cactuses cacti community communities"
  )
);

I found the path and wrote it in the options

A slightly different implementation of a half sieve using Numpy:

http://rebrained.com/?p=458

import math
import numpy
def prime6(upto):
    primes=numpy.arange(3,upto+1,2)
    isprime=numpy.ones((upto-1)/2,dtype=bool)
    for factor in primes[:int(math.sqrt(upto))]:
        if isprime[(factor-2)/2]: isprime[(factor*3-2)/2:(upto-1)/2:factor]=0
    return numpy.insert(primes[isprime],0,2)

Can someone compare this with the other timings? On my machine it seems pretty comparable to the other Numpy half-sieve.

The fileinput module has an inplace mode for writing changes to the file you are processing without using temporary files etc. The module nicely encapsulates the common operation of looping over the lines in a list of files, via an object which transparently keeps track of the file name, line number etc if you should want to inspect them inside the loop.

from fileinput import FileInput
for line in FileInput("file", inplace=1):
    line = line.replace("foobar", "bar")
    print(line)

If the image is part of the layout it might be "View.VISIBLE" but that doesn't mean it's within the confines of the visible screen. If that's what you're after; this will work:

Rect scrollBounds = new Rect();
scrollView.getHitRect(scrollBounds);
if (imageView.getLocalVisibleRect(scrollBounds)) {
    // imageView is within the visible window
} else {
    // imageView is not within the visible window
}

I know this is a bit of an old question, but I've ended up making my own little class for it.

Might be useful to someone so I'll stick it up. I used a class variable, which is inherently persistent, to ensure sufficient whitespace was added to clear any old lines. See below:

class consolePrinter():
'''
Class to write to the console

Objective is to make it easy to write to console, with user able to 
overwrite previous line (or not)
'''
# -------------------------------------------------------------------------    
#Class variables
stringLen = 0    
# -------------------------------------------------------------------------    
    
# -------------------------------------------------------------------------
def writeline(stringIn, overwriteFlag=False):
    import sys
    #Get length of stringIn and update stringLen if needed
    if len(stringIn) > consolePrinter.stringLen:
        consolePrinter.stringLen = len(stringIn)+1
    
    ctrlString = "{:<"+str(consolePrinter.stringLen)+"}"
    if overwriteFlag:
        sys.stdout.write("\r" + ctrlString.format(stringIn))
    else:
        sys.stdout.write("\n" + stringIn)
    sys.stdout.flush()
    
    return

Which then is called via:

consolePrinter.writeline("text here", True) 

If you want to overwrite the previous line, or

consolePrinter.writeline("text here",False)

if you don't.

Note, for it to work right, all messages pushed to the console would need to be through consolePrinter.writeline.

You can simply cast strings to DateTime:

[DateTime]"2020-7-16"

or

[DateTime]"Jul-16"

or

$myDate = [DateTime]"Jul-16";

And you can format the resulting DateTime variable by doing something like this:

'{0:yyyy-MM-dd}' -f [DateTime]'Jul-16'

or

([DateTime]"Jul-16").ToString('yyyy-MM-dd')

or

$myDate = [DateTime]"Jul-16";
'{0:yyyy-MM-dd}' -f $myDate

Also remember that it must be:

#include "stdafx.h"
#include <iostream>

and not the other way around

#include <iostream>
#include "stdafx.h"

Virtualenv is your friend

Even if you want to add a package to your primary install, it's still best to do it in a virtual environment first, to ensure compatibility with your other packages. However, if you get familiar with virtualenv, you'll probably find there's really no reason to install anything in your base install.

For a Spark execution in pyspark two components are required to work together:

• pyspark python package
• Spark instance in a JVM

When launching things with spark-submit or pyspark, these scripts will take care of both, i.e. they set up your PYTHONPATH, PATH, etc, so that your script can find pyspark, and they also start the spark instance, configuring according to your params, e.g. --master X

Alternatively, it is possible to bypass these scripts and run your spark application directly in the python interpreter likepython myscript.py. This is especially interesting when spark scripts start to become more complex and eventually receive their own args.

1. Ensure the pyspark package can be found by the Python interpreter. As already discussed either add the spark/python dir to PYTHONPATH or directly install pyspark using pip install.
2. Set the parameters of spark instance from your script (those that used to be passed to pyspark).
   • For spark configurations as you'd normally set with --conf they are defined with a config object (or string configs) in SparkSession.builder.config
   • For main options (like --master, or --driver-mem) for the moment you can set them by writing to the PYSPARK_SUBMIT_ARGS environment variable. To make things cleaner and safer you can set it from within Python itself, and spark will read it when starting.
3. Start the instance, which just requires you to call getOrCreate() from the builder object.

Your script can therefore have something like this:

from pyspark.sql import SparkSession

if __name__ == "__main__":
    if spark_main_opts:
        # Set main options, e.g. "--master local[4]"
        os.environ['PYSPARK_SUBMIT_ARGS'] = spark_main_opts + " pyspark-shell"

    # Set spark config
    spark = (SparkSession.builder
             .config("spark.checkpoint.compress", True)
             .config("spark.jars.packages", "graphframes:graphframes:0.5.0-spark2.1-s_2.11")
             .getOrCreate())

When the number is not big, everything seems just right. But if it isn't, great caution is required to achieve correctness.

Take double as an example:

If it is not big, as others mentioned you can just try this simply:

doubles.stream().mapToDouble(d -> d).average().orElse(0.0);

However, if it's out of your control and quite big, you have to turn to BigDecimal as follows (methods in the old answers using BigDecimal actually are wrong).

doubles.stream().map(BigDecimal::valueOf).reduce(BigDecimal.ZERO, BigDecimal::add)
       .divide(BigDecimal.valueOf(doubles.size())).doubleValue();

Enclose the tests I carried out to demonstrate my point:

    @Test
    public void testAvgDouble() {
        assertEquals(5.0, getAvgBasic(Stream.of(2.0, 4.0, 6.0, 8.0)), 1E-5);
        List<Double> doubleList = new ArrayList<>(Arrays.asList(Math.pow(10, 308), Math.pow(10, 308), Math.pow(10, 308), Math.pow(10, 308)));
        // Double.MAX_VALUE = 1.7976931348623157e+308
        BigDecimal doubleSum = BigDecimal.ZERO;
        for (Double d : doubleList) {
            doubleSum =  doubleSum.add(new BigDecimal(d.toString()));
        }
        out.println(doubleSum.divide(valueOf(doubleList.size())).doubleValue());
        out.println(getAvgUsingRealBigDecimal(doubleList.stream()));
        out.println(getAvgBasic(doubleList.stream()));
        out.println(getAvgUsingFakeBigDecimal(doubleList.stream()));
    }

    private double getAvgBasic(Stream<Double> doubleStream) {
        return doubleStream.mapToDouble(d -> d).average().orElse(0.0);
    }

    private double getAvgUsingFakeBigDecimal(Stream<Double> doubleStream) {
        return doubleStream.map(BigDecimal::valueOf)
                .collect(Collectors.averagingDouble(BigDecimal::doubleValue));
    }

    private double getAvgUsingRealBigDecimal(Stream<Double> doubleStream) {
        List<Double> doubles = doubleStream.collect(Collectors.toList());
        return doubles.stream().map(BigDecimal::valueOf).reduce(BigDecimal.ZERO, BigDecimal::add)
                .divide(valueOf(doubles.size()), BigDecimal.ROUND_DOWN).doubleValue();
    }

As for Integer or Long, correspondingly you can use BigInteger similarly.

I found that that when I have two Get methods, one parameterless and one with a complex type as a parameter that I got the same error. I solved this by adding a dummy parameter of type int, named Id, as my first parameter, followed by my complex type parameter. I then added the complex type parameter to the route template. The following worked for me.

First get:

public IEnumerable<SearchItem> Get()
{
...
}

Second get:

public IEnumerable<SearchItem> Get(int id, [FromUri] List<string> layers)
{
...
}

WebApiConfig:

config.Routes.MapHttpRoute(
    name: "DefaultApi",
    routeTemplate: "api/{controller}/{id}/{layers}",
    defaults: new { id = RouteParameter.Optional, layers RouteParameter.Optional }
);

Here is the source code: you can get the text which is exactly in the URL

URL = ''
page = requests.get(URL)
soup = bs4.BeautifulSoup(page.content,'html.parser').get_text()
print(soup)

You may also want to use hasOwnProperty in the loop.

for (var prop in obj) {
    if (obj.hasOwnProperty(prop)) {
        switch (prop) {
            // obj[prop] has the value
        }
    }
}

node.js is single-threaded which means your script will block whether you want it or not. Remember that V8 (Google's Javascript engine that node.js uses) compiles Javascript into machine code which means that most basic operations are really fast and looping through an object with 100 keys would probably take a couple of nanoseconds?

However, if you do a lot more inside the loop and you don't want it to block right now, you could do something like this

switch (prop) {
    case 'Timestamp':
        setTimeout(function() { ... }, 5);
        break;
    case 'Start_Value':
        setTimeout(function() { ... }, 10);
        break;
}

If your loop is doing some very CPU intensive work, you will need to spawn a child process to do that work or use web workers.

I've used Abidar successfully in an ASP.NET project (here's some background information).

The only problem with this method is that the tasks won't run if the ASP.NET web application is unloaded from memory (ie. due to low usage). One thing I tried is creating a task to hit the web application every 5 minutes, keeping it alive, but this didn't seem to work reliably, so now I'm using the Windows scheduler and basic console application to do this instead.

The ideal solution is creating a Windows service, though this might not be possible (ie. if you're using a shared hosting environment). It also makes things a little easier from a maintenance perspective to keep things within the web application.

Following one is working fine with moments js 2.10 and above

$.fn.dataTableExt.afnFiltering.push(
        function( settings, data, dataIndex ) {
            var min  = $('#min-date').val()
            var max  = $('#max-date').val()
            var createdAt = data[0] || 0; // Our date column in the table
            //createdAt=createdAt.split(" ");
            var startDate   = moment(min, "DD/MM/YYYY");
            var endDate     = moment(max, "DD/MM/YYYY");
            var diffDate = moment(createdAt, "DD/MM/YYYY");
            //console.log(startDate);
            if (
              (min == "" || max == "") ||
              (diffDate.isBetween(startDate, endDate))


            ) {  return true;  }
            return false;

        }
    );

winpty works as long as you don't specify volumes to be mounted such as ".:/mountpoint" or "${pwd}:/mountpoint"

The best workaround I have found is to use the git-bash plugin inside Visual Code Studio and use the terminal to start and stop containers or docker-compose.

In short, it is a scripting notation for passing data about. In some ways an alternative to XML, natively supporting basic data types, arrays and associative arrays (name-value pairs, called Objects because that is what they represent).

The syntax is that used in JavaScript and JSON itself stands for "JavaScript Object Notation". However it has become portable and is used in other languages too.

A useful link for detail is here:

http://secretgeek.net/json_3mins.asp

There's also the subset command, useful if you know which columns you want:

df <- data.frame(a = 1:10, b = 2:11, c = 3:12)
df <- subset(df, select = c(a, c))

UPDATED after comment by @hadley: To drop columns a,c you could do:

df <- subset(df, select = -c(a, c))

I wonder why people are not highlighting the MOST compelling reason in favor of EFS. EFS can be mounted on more than one EC2 instance at the same time, enabling access to files on EFS at the same time.

(Edit 2020 May, EBS supports mounting to multiple EC2 at same time now as well, see: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-volumes-multi.html)

Function attributes can be used to write light-weight closures that wrap code and associated data together:

#!/usr/bin/env python

SW_DELTA = 0
SW_MARK  = 1
SW_BASE  = 2

def stopwatch():
   import time

   def _sw( action = SW_DELTA ):

      if action == SW_DELTA:
         return time.time() - _sw._time

      elif action == SW_MARK:
         _sw._time = time.time()
         return _sw._time

      elif action == SW_BASE:
         return _sw._time

      else:
         raise NotImplementedError

   _sw._time = time.time() # time of creation

   return _sw

# test code
sw=stopwatch()
sw2=stopwatch()
import os
os.system("sleep 1")
print sw() # defaults to "SW_DELTA"
sw( SW_MARK )
os.system("sleep 2")
print sw()
print sw2()

1.00934004784

2.00644397736

3.01593494415

It's usually the code. Here's a simple example:

import java.util.*;

public class GarbageCollector {

    public static void main(String... args) {

        System.out.printf("Testing...%n");
        List<Double> list = new ArrayList<Double>();
        for (int outer = 0; outer < 10000; outer++) {

            // list = new ArrayList<Double>(10000); // BAD
            // list = new ArrayList<Double>(); // WORSE
            list.clear(); // BETTER

            for (int inner = 0; inner < 10000; inner++) {
                list.add(Math.random());
            }

            if (outer % 1000 == 0) {
                System.out.printf("Outer loop at %d%n", outer);
            }

        }
        System.out.printf("Done.%n");
    }
}

Using Java 1.6.0_24-b07 on a Windows 7 32 bit.

java -Xloggc:gc.log GarbageCollector

Then look at gc.log

• Triggered 444 times using BAD method
• Triggered 666 times using WORSE method
• Triggered 354 times using BETTER method

Now granted, this is not the best test or the best design but when faced with a situation where you have no choice but implementing such a loop or when dealing with existing code that behaves badly, choosing to reuse objects instead of creating new ones can reduce the number of times the garbage collector gets in the way...

Python 3 renamed the unicode type to str, the old str type has been replaced by bytes.

if isinstance(unicode_or_str, str):
    text = unicode_or_str
    decoded = False
else:
    text = unicode_or_str.decode(encoding)
    decoded = True

You may want to read the Python 3 porting HOWTO for more such details. There is also Lennart Regebro's Porting to Python 3: An in-depth guide, free online.

Last but not least, you could just try to use the 2to3 tool to see how that translates the code for you.

Use

$ java -XshowSettings
Property settings:
    java.home = /home/nisar/javadev/javasuncom/jdk1.7.0_17/jre
    java.io.tmpdir = /tmp

Somewhere in your code there is a line #include <string>. This by itself tells you that the program is written in C++. So using g++ is better than gcc.

For the missing library: you should look around in the file system if you can find a file called libl.so. Use the locate command, try /usr/lib, /usr/local/lib, /opt/flex/lib, or use the brute-force find / | grep /libl.

Once you have found the file, you have to add the directory to the compiler command line, for example:

g++ -o scan lex.yy.c -L/opt/flex/lib -ll

About promise composition vs. Rxjs, as this is a frequently asked question, you can refer to a number of previously asked questions on SO, among which :

• How to do the chain sequence in rxjs
• RxJS Promise Composition (passing data)
• RxJS sequence equvalent to promise.then()?

Basically, flatMap is the equivalent of Promise.then.

For your second question, do you want to replay values already emitted, or do you want to process new values as they arrive? In the first case, check the publishReplay operator. In the second case, standard subscription is enough. However you might need to be aware of the cold. vs. hot dichotomy depending on your source (cf. Hot and Cold observables : are there 'hot' and 'cold' operators? for an illustrated explanation of the concept)

We use WinSCP. Its free. Its not a lib, but has a well documented and full featured command line interface that you can use with Process.Start.

Update: with v.5.0, WinSCP has a .NET wrapper library to the scripting layer of WinSCP.

Nothing compares to extjs in terms of community size and presence on StackOverflow. Despite previous controversy, Ext JS now has a GPLv3 open source license. Its learning curve is long, but it can be quite rewarding once learned. Ext JS lacks a Material Design theme, and the team has repeatedly refused to release the source code on GitHub. For mobile, one must use the separate Sencha Touch library.

Have in mind also that,

large JavaScript libraries, such as YUI, have been receiving less attention from the community. Many developers today look at large JavaScript libraries as walled gardens they don’t want to be locked into.

-- Announcement of YUI development being ceased

That said, below are a number of Ext JS alternatives currently available.

Leading client widget libraries

1. Blueprint is a React-based UI toolkit developed by big data analytics company Palantir in TypeScript, and "optimized for building complex data-dense interfaces for desktop applications". Actively developed on GitHub as of May 2019, with comprehensive documentation. Components range from simple (chips, toast, icons) to complex (tree, data table, tag input with autocomplete, date range picker. No accordion or resizer.

   Blueprint targets modern browsers (Chrome, Firefox, Safari, IE 11, and Microsoft Edge) and is licensed under a modified Apache license.

   Sandbox / demo • GitHub • Docs

2. Webix - an advanced, easy to learn, mobile-friendly, responsive and rich free&open source JavaScript UI components library. Webix spun off from DHTMLX Touch (a project with 8 years of development behind it - see below) and went on to become a standalone UI components framework. The GPL3 edition allows commercial use and lets non-GPL applications using Webix keep their license, e.g. MIT, via a license exemption for FLOSS. Webix has 55 UI widgets, including trees, grids, treegrids and charts. Funding comes from a commercial edition with some advanced widgets (Pivot, Scheduler, Kanban, org chart etc.). Webix has an extensive list of free and commercial widgets, and integrates with most popular frameworks (React, Vue, Meteor, etc) and UI components.

   

   Skins look modern, and include a Material Design theme. The Touch theme also looks quite Material Design-ish. See also the Skin Builder.

   Minimal GitHub presence, but includes the library code, and the documentation (which still needs major improvements). Webix suffers from a having a small team and a lack of marketing. However, they have been responsive to user feedback, both on GitHub and on their forum.

   The library was lean (128Kb gzip+minified for all 55 widgets as of ~2015), faster than ExtJS, dojo and others, and the design is pleasant-looking. The current version of Webix (v6, as of Nov 2018) got heavier (400 - 676kB minified but NOT gzipped).

   The demos on Webix.com look and function great. The developer, XB Software, uses Webix in solutions they build for paying customers, so there's likely a good, funded future ahead of it.

   Webix aims for backwards compatibility down to IE8, and as a result carries some technical debt.

   Wikipedia • GitHub • Playground/sandbox • Admin dashboard demo • Demos • Widget samples

3. react-md - MIT-licensed Material Design UI components library for React. Responsive, accessible. Implements components from simple (buttons, cards) to complex (sortable tables, autocomplete, tags input, calendars). One lead author, ~1900 GitHub stars.

4. kendo - jQuery-based UI toolkit with 40+ basic open-source widgets, plus commercial professional widgets (grids, trees, charts etc.). Responsive&mobile support. Works with Bootstrap and AngularJS. Modern, with Material Design themes. The documentation is available on GitHub, which has enabled numerous contributions from users (4500+ commits, 500+ PRs as of Jan 2015).

   

   Well-supported commercially, claiming millions of developers, and part of a large family of developer tools. Telerik has received many accolades, is a multi-national company (Bulgaria, US), was acquired by Progress Software, and is a thought leader.

   A Kendo UI Professional developer license costs $700 and posting access to most forums is conditioned upon having a license or being in the trial period.

   [Wikipedia] • GitHub/Telerik • Demos • Playground • Tools

5. OpenUI5 - jQuery-based UI framework with 180 widgets, Apache 2.0-licensed and fully-open sourced and funded by German software giant SAP SE.

   

   The community is much larger than that of Webix, SAP is hiring developers to grow OpenUI5, and they presented OpenUI5 at OSCON 2014.

   The desktop themes are rather lackluster, but the Fiori design for web and mobile looks clean and neat.

   Wikipedia • GitHub • Mobile-first controls demos • Desktop controls demos • SO

6. DHTMLX - JavaScript library for building rich Web and Mobile apps. Looks most like ExtJS - check the demos. Has been developed since 2005 but still looks modern. All components except TreeGrid are available under GPLv2 but advanced features for many components are only available in the commercial PRO edition - see for example the tree. Claims to be used by many Fortune 500 companies.

   

   Minimal presence on GitHub (the main library code is missing) and StackOverflow but active forum. The documentation is not available on GitHub, which makes it difficult to improve by the community.

7. Polymer, a Web Components polyfill, plus Polymer Paper, Google's implementation of the Material design. Aimed at web and mobile apps. Doesn't have advanced widgets like trees or even grids but the controls it provides are mobile-first and responsive. Used by many big players, e.g. IBM or USA Today.

   

8. Ant Design claims it is "a design language for background applications", influenced by "nature" and helping designers "create low-entropy atmosphere for developer team". That's probably a poor translation from Chinese for "UI components for enterprise web applications". It's a React UI library written in TypeScript, with many components, from simple (buttons, cards) to advanced (autocomplete, calendar, tag input, table).

   The project was born in China, is popular with Chinese companies, and parts of the documentation are available only in Chinese. Quite popular on GitHub, yet it makes the mistake of splitting the community into Chinese and English chat rooms. The design looks Material-ish, but fonts are small and the information looks lost in a see of whitespace.

9. PrimeUI - collection of 45+ rich widgets based on jQuery UI. Apache 2.0 license. Small GitHub community. 35 premium themes available.

10. qooxdoo - "a universal JavaScript framework with a coherent set of individual components", developed and funded by German hosting provider 1&1 (see the contributors, one of the world's largest hosting companies. GPL/EPL (a business-friendly license).

    Mobile themes look modern but desktop themes look old (gradients).

    

    Wikipedia • GitHub • Web/Mobile/Desktop demos • Widgets Demo browser • Widget browser • SO • Playground • Community

11. jQuery UI - easy to pick up; looks a bit dated; lacks advanced widgets. Of course, you can combine it with independent widgets for particular needs, e.g. trees or other UI components, but the same can be said for any other framework.

12. angular + Angular UI. While Angular is backed by Google, it's being radically revamped in the upcoming 2.0 version, and "users will need to get to grips with a new kind of architecture. It's also been confirmed that there will be no migration path from Angular 1.X to 2.0". Moreover, the consensus seems to be that Angular 2 won't really be ready for use until a year or two from now. Angular UI has relatively few widgets (no trees, for example).

13. DojoToolkit and their powerful Dijit set of widgets. Completely open-sourced and actively developed on GitHub, but development is now (Nov 2018) focused on the new dojo.io framework, which has very few basic widgets. BSD/AFL license. Development started in 2004 and the Dojo Foundation is being sponsored by IBM, Google, and others - see Wikipedia. 7500 questions here on SO.

    

    Themes look desktop-oriented and dated - see the theme tester in dijit. The official theme previewer is broken and only shows "Claro". A Bootstrap theme exists, which looks a lot like Bootstrap, but doesn't use Bootstrap classes. In Jan 2015, I started a thread on building a Material Design theme for Dojo, which got quite popular within the first hours. However, there are questions regarding building that theme for the current Dojo 1.10 vs. the next Dojo 2.0. The response to that thread shows an active and wide community, covering many time zones.

    Unfortunately, Dojo has fallen out of popularity and fewer companies appear to use it, despite having (had?) a strong foothold in the enterprise world. In 2009-2012, its learning curve was steep and the documentation needed improvements; while the documentation has substantially improved, it's unclear how easy it is to pick up Dojo nowadays.

    With a Material Design theme, Dojo (2.0?) might be the killer UI components framework.

    Wikipedia • GitHub • Themes • Demos • Desktop widgets • SO

14. Enyo - front-end library aimed at mobile and TV apps (e.g. large touch-friendly controls). Developed by LG Electronix and Apache-licensed on GitHub.

15. The radical Cappuccino - Objective-J (a superset of JavaScript) instead of HTML+CSS+DOM

16. Mochaui, MooTools UI Library User Interface Library. <300 GitHub stars.

17. CrossUI - cross-browser JS framework to develop and package the exactly same code and UI into Web Apps, Native Desktop Apps (Windows, OS X, Linux) and Mobile Apps (iOS, Android, Windows Phone, BlackBerry). Open sourced LGPL3. Featured RAD tool (form builder etc.). The UI looks desktop-, not web-oriented. Actively developed, small community. No presence on GitHub.

18. ZinoUI - simple widgets. The DataTable, for instance, doesn't even support sorting.

19. Wijmo - good-looking commercial widgets, with old (jQuery UI) widgets open-sourced on GitHub (their development stopped in 2013). Developed by ComponentOne, a division of GrapeCity. See Wijmo Complete vs. Open.

20. CxJS - commercial JS framework based on React, Babel and webpack offering form elements, form validation, advanced grid control, navigational elements, tooltips, overlays, charts, routing, layout support, themes, culture dependent formatting and more.

Widgets - Demo Apps - Examples - GitHub

Full-stack frameworks

1. SproutCore - developed by Apple for web applications with native performance, handling large data sets on the client. Powers iCloud.com. Not intended for widgets.

2. Wakanda: aimed at business/enterprise web apps - see What is Wakanda?. Architecture:

   • Wakanda Server (server-side JavaScript (custom engine) + open-source NoSQL database)
   • desktop IDE and WYSIWYG editor for tables, forms, reports

   • Wakanda Application Framework (datasource layer + browser-based interface widgets) that helps with browser and device compatibility across desktop and mobile

     Wakanda is highly integrated, includes a ton of features out of the box, but has a very small GitHub community and SO presence.

3. Servoy - "a cross platform frontend development and deployment environment for SQL databases". Boasts a "full WYSIWIG (What You See Is What You Get) UI designer for HTML5 with built-in data-binding to back-end services", responsive design, support for HTML6 Web Components, Websockets and mobile platforms. Written in Java and generates JavaScript code using various JavaBeans.

4. SmartClient/SmartGWT - mobile and cross-browser HTML5 UI components combined with a Java server. Aimed at building powerful business apps - see demos.

5. Vaadin - full-stack Java/GWT + JavaScript/HTML3 web app framework

6. Backbase - portal software

7. Shiny - front-end library on top R, with visualization, layout and control widgets

8. ZKOSS: Java+jQuery+Bootstrap framework for building enterprise web and mobile apps.

CSS libraries + minimal widgets

These libraries don't implement complex widgets such as tables with sorting/filtering, autocompletes, or trees.

1. Bootstrap

2. Foundation for Apps - responsive front-end framework on top of AngularJS; more of a grid/layout/navigation library

3. UI Kit - similar to Bootstrap, with fewer widgets, but with official off-canvas.

Libraries using HTML Canvas

Using the canvas elements allows for complete control over the UI, and great cross-browser compatibility, but comes at the cost of missing native browser functionality, e.g. page search via Ctrl/Cmd+F.

1. Zebra - demos

No longer developed as of Dec 2014

1. Yahoo! User Interface - YUI, launched in 2005, but no longer maintained by the core contributors - see the announcement, which highlights reasons why large UI widget libraries are perceived as walled gardens that developers don't want to be locked into.
2. echo3, GitHub. Supports writing either server-side Java applications that don't require developer knowledge of HTML, HTTP, or JavaScript, or client-side JavaScript-based applications do not require a server, but can communicate with one via AJAX. Last update: July 2013.
3. ampleSDK
4. Simpler widgets livepipe.net
5. JxLib
6. rialto
7. Simple UI kit
8. Prototype-ui

Other lists

• Best of JS - component toolkits
• Wikipedia's Comparison of JavaScript frameworks
• Wikipedia's list of GUI-related JavaScript libraries
• jqueryuiwidgets.com - detailed jQuery widgets feature comparison

Change the GetXxx API method to return HttpResponseMessage and then return a typed version for the full response and the untyped version for the NotModified response.

    public HttpResponseMessage GetComputingDevice(string id)
    {
        ComputingDevice computingDevice =
            _db.Devices.OfType<ComputingDevice>()
                .SingleOrDefault(c => c.AssetId == id);

        if (computingDevice == null)
        {
            return this.Request.CreateResponse(HttpStatusCode.NotFound);
        }

        if (this.Request.ClientHasStaleData(computingDevice.ModifiedDate))
        {
            return this.Request.CreateResponse<ComputingDevice>(
                HttpStatusCode.OK, computingDevice);
        }
        else
        {
            return this.Request.CreateResponse(HttpStatusCode.NotModified);
        }
    }

*The ClientHasStale data is my extension for checking ETag and IfModifiedSince headers.

The MVC framework should still serialize and return your object.

NOTE

I think the generic version is being removed in some future version of the Web API.

Very easy solution (2 min to config) is to use local-ssl-proxy package from npm

The usage is straight pretty forward:
1. Install the package: npm install -g local-ssl-proxy
2. While running your local-server mask it with the local-ssl-proxy --source 9001 --target 9000

P.S: Replace --target 9000 with the -- "number of your port" and --source 9001 with --source "number of your port +1"

Uhm, what's wrong with this:

#include <iostream>

using namespace std;

int main(int, char **)
{
    char c = 'A';

    int x = c; // Look ma! No cast!

    cout << "The character '" << c << "' has an ASCII code of " << x << endl;

    return 0;
}

This can be achieved as follows:

this.itemArr = this.itemArr.filter( h => h.id !== ID);

I made a librairy to make Hexadecimal / Decimal conversion without the use of stdio.h. Very simple to use :

unsigned hexdec (const char *hex, const int s_hex);

Before the first conversion intialize the array used for conversion with :

void init_hexdec ();

Here the link on github : https://github.com/kevmuret/libhex/

It looks like you are trying to start the Python interpreter by running the command python.

However the interpreter is already started. It is interpreting python as a name of a variable, and that name is not defined.

Try this instead and you should hopefully see that your Python installation is working as expected:

print("Hello world!")

@JosephEarl +1 He has a great solution here that worked perfectly for me with some minor modifications for doing it programmatically.

Here are the minor changes I made:

LockableScrollView Class:

public boolean setScrollingEnabled(boolean enabled) {
    mScrollable = enabled;
    return mScrollable;
}

MainActivity:

LockableScrollView sv;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    sv = new LockableScrollView(this);
    sv.setScrollingEnabled(false);
}

In case of PUT or POST Request. if you receive statusCode 405 or method not allowed. Try this implementation with "request" library, and add mentioned properties.
followAllRedirects: true,
followOriginalHttpMethod: true

       const options = {
           headers: {
               Authorization: TOKEN,
               'Content-Type': 'application/json',
               'Accept': 'application/json'
           },
           url: `https://${url}`,
           json: true,
           body: payload,
           followAllRedirects: true,
           followOriginalHttpMethod: true
       }

       console.log('DEBUG: API call', JSON.stringify(options));
       request(options, function (error, response, body) {
       if (!error) {
        console.log(response);
        }
     });
}

Try this:

$comments_collection = $post->comments()->get()->toArray();

see this can help you
toArray() method in Collections

Clear all files from temporary folder (C:\Users\user_name\AppData\Local\Temp\Temporary ASP.NET Files\project folder)

As far as I know you can use all mentioned technologies separately or together. It's up to you. I think you look at the problem from the wrong angle. Material Design is just the way particular elements of the page are designed, behave and put together. Material Design provides great UI/UX, but it relies on the graphic layout (HTML/CSS) rather than JS (events, interactions).

On the other hand, AngularJS and Bootstrap are front-end frameworks that can speed up your development by saving you from writing tons of code. For example, you can build web app utilizing AngularJS, but without Material Design. Or You can build simple HTML5 web page with Material Design without AngularJS or Bootstrap. Finally you can build web app that uses AngularJS with Bootstrap and with Material Design. This is the best scenario. All technologies support each other.

1. Bootstrap = responsive page
2. AngularJS = MVC
3. Material Design = great UI/UX

You can check awesome material design components for AngularJS:

https://material.angularjs.org

Demo: https://material.angularjs.org/latest/demo/

It will/may be empty when the enduser

• entered the site URL in browser address bar itself.
• visited the site by a browser-maintained bookmark.
• visited the site as first page in the window/tab.
• clicked a link in an external application.
• switched from a https URL to a http URL.
• switched from a https URL to a different https URL.
• has security software installed (antivirus/firewall/etc) which strips the referrer from all requests.
• is behind a proxy which strips the referrer from all requests.
• visited the site programmatically (like, curl) without setting the referrer header (searchbots!).

if you are using target sdk as 23 add below code in your build.gradle

android{
 useLibrary  'org.apache.http.legacy'
}

additional note here: dont try using the gradle versions of those files. they are broken (28.08.15). I tried over 5 hours to get it to work. it just doesnt. not working:

compile 'org.apache.httpcomponents:httpcore:4.4.1'
compile 'org.apache.httpcomponents:httpclient:4.5'

another thing dont use:

'org.apache.httpcomponents:httpclient-android:4.3.5.1'

its referring 21 api level.

Edit: It's been a few years since I originally posted this answer, and even though I got a few upvotes, I'm not really happy with my previous answer, so I have redone it completely. I hope this helps.

When to use GET and POST:

One way to get rid of this error message is to make your form use GET instead of POST. Just keep in mind that this is not always an appropriate solution (read below).

Always use POST if you are performing an action that you don't want to be repeated, if sensitive information is being transferred or if your form contains either a file upload or the length of all data sent is longer than ~2000 characters.

Examples of when to use POST would include:

• A login form
• A contact form
• A submit payment form
• Something that adds, edits or deletes entries from a database
• An image uploader (note, if using GET with an <input type="file"> field, only the filename will be sent to the server, which 99.73% of the time is not what you want.)
• A form with many fields (which would create a long URL if using GET)

In any of these cases, you don't want people refreshing the page and re-sending the data. If you are sending sensitive information, using GET would not only be inappropriate, it would be a security issue (even if the form is sent by AJAX) since the sensitive item (e.g. user's password) is sent in the URL and will therefore show up in server access logs.

Use GET for basically anything else. This means, when you don't mind if it is repeated, for anything that you could provide a direct link to, when no sensitive information is being transferred, when you are pretty sure your URL lengths are not going to get out of control and when your forms don't have any file uploads.

Examples would include:

• Performing a search in a search engine
• A navigation form for navigating around the website
• Performing one-time actions using a nonce or single use password (such as an "unsubscribe" link in an email).

In these cases POST would be completely inappropriate. Imagine if search engines used POST for their searches. You would receive this message every time you refreshed the page and you wouldn't be able to just copy and paste the results URL to people, they would have to manually fill out the form themselves.

If you use POST:

To me, in most cases even having the "Confirm form resubmission" dialog pop up shows that there is a design flaw. By the very nature of POST being used to perform destructive actions, web designers should prevent users from ever performing them more than once by accidentally (or intentionally) refreshing the page. Many users do not even know what this dialog means and will therefore just click on "Continue". What if that was after a "submit payment" request? Does the payment get sent again?

So what do you do? Fortunately we have the Post/Redirect/Get design pattern. The user submits a POST request to the server, the server redirects the user's browser to another page and that page is then retrieved using GET.

Here is a simple example using PHP:

if(!empty($_POST['username'] && !empty($_POST['password'])) {
    $user = new User;
    $user->login($_POST['username'], $_POST['password']);

    if ($user->isLoggedIn()) {
        header("Location: /admin/welcome.php");
        exit;
    }
    else {
        header("Location: /login.php?invalid_login");
    }
}

Notice how in this example even when the password is incorrect, I am still redirecting back to the login form. To display an invalid login message to the user, just do something like:

if (isset($_GET['invalid_login'])) {
    echo "Your username and password combination is invalid";
}

Like this:

>>>mystr = "abcdefghijkl"
>>>mystr[-4:]
'ijkl'

This slices the string's last 4 characters. The -4 starts the range from the string's end. A modified expression with [:-4] removes the same 4 characters from the end of the string:

>>>mystr[:-4]
'abcdefgh'

For more information on slicing see this Stack Overflow answer.

The whole point of using a mapping technology like Jackson is that you can use Objects (you don't have to parse the JSON yourself).

Define a Java class that resembles the JSON you will be expecting.

e.g. this JSON:

{
"foo" : ["abc","one","two","three"],
"bar" : "true",
"baz" : "1"
}

could be mapped to this class:

public class Fizzle{
    private List<String> foo;
    private boolean bar;
    private int baz;
    // getters and setters omitted
}

Now if you have a Controller method like this:

@RequestMapping("somepath")
@ResponseBody
public Fozzle doSomeThing(@RequestBody Fizzle input){
    return new Fozzle(input);
}

and you pass in the JSON from above, Jackson will automatically create a Fizzle object for you, and it will serialize a JSON view of the returned Object out to the response with mime type application/json.

For a full working example see this previous answer of mine.

Since localStorage is a global object, you can add a watch in the dev tools. Just enter the dev tools, goto "watch", click on "Click to add..." and type in "localStorage".

A refinement on the answer by JSmyth:

console.logCopy = console.log.bind(console);

console.log = function()
{
    if (arguments.length)
    {
        var timestamp = new Date().toJSON(); // The easiest way I found to get milliseconds in the timestamp
        var args = arguments;
        args[0] = timestamp + ' > ' + arguments[0];
        this.logCopy.apply(this, args);
    }
};

This:

• shows timestamps with milliseconds
• assumes a format string as first parameter to .log

The task definition for the user module should be different in the latest Ansible version.

tasks:
  - user: name=test password={{ password }} state=present

If your file starts with the bytes 60, 118, 56, 46 and 49, then you have an ambiguous case. It could be UTF-8 (without BOM) or any of the single byte encodings like ASCII, ANSI, ISO-8859-1 etc.

This should be understood in the context of GitHub forks (where you fork a GitHub repo on GitHub before cloning that fork locally).

• upstream generally refers to the original repo that you have forked
  (see also "Definition of “downstream” and “upstream”" for more on upstream term)
• origin is your fork: your own repo on GitHub, clone of the original repo of GitHub

From the GitHub page:

When a repo is cloned, it has a default remote called origin that points to your fork on GitHub, not the original repo it was forked from.
To keep track of the original repo, you need to add another remote named upstream

git remote add upstream git://github.com/<aUser>/<aRepo.git>

(with aUser/aRepo the reference for the original creator and repository, that you have forked)

You will use upstream to fetch from the original repo (in order to keep your local copy in sync with the project you want to contribute to).

git fetch upstream

(git fetch alone would fetch from origin by default, which is not what is needed here)

You will use origin to pull and push since you can contribute to your own repository.

git pull
git push

(again, without parameters, 'origin' is used by default)

You will contribute back to the upstream repo by making a pull request.

I was struggling, but the below worked for me finally!

Dim WB As Workbook

Set WB = Workbooks.Open("\\users\path\Desktop\test.xlsx")

WB.SaveAs fileName:="\\users\path\Desktop\test.xls", _
        FileFormat:=xlExcel8, Password:="", WriteResPassword:="", _
        ReadOnlyRecommended:=False, CreateBackup:=False

XSLT 2.0 has upper-case() and lower-case() functions. In case of XSLT 1.0, you can use translate():

<xsl:value-of select="translate("xslt", "abcdefghijklmnopqrstuvwxyz", "ABCDEFGHIJKLMNOPQRSTUVWXYZ")" />

Simple way that works and I checked.

private readonly UserManager<IdentityUser> _userManager;
public CompetitionsController(UserManager<IdentityUser> userManager)
{
    _userManager = userManager;
}

var user = await _userManager.GetUserAsync(HttpContext.User);

then you can all the properties of this variables like user.Email. I hope this would help someone.

Edit:

It's an apparently simple thing but bit complicated cause of different types of authentication systems in ASP.NET Core. I update cause some people are getting null.

For JWT Authentication (Tested on ASP.NET Core v3.0.0-preview7):

var email = HttpContext.User.Claims.FirstOrDefault(c => c.Type == "sub")?.Value;

var user = await _userManager.FindByEmailAsync(email);

You can do a port redirect. This is what I do for a Silverlight policy server running on a Linux box

iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 943 -j REDIRECT --to-port 1300

In my opinion the sprintf-function deserves a place among these answers as well. You can use sprintf as follows:

do.call(sprintf, c(d[cols], '%s-%s-%s'))

which gives:

 [1] "a-d-g" "b-e-h" "c-f-i"

And to create the required dataframe:

data.frame(a = d$a, x = do.call(sprintf, c(d[cols], '%s-%s-%s')))

giving:

  a     x
1 1 a-d-g
2 2 b-e-h
3 3 c-f-i

Although sprintf doesn't have a clear advantage over the do.call/paste combination of @BrianDiggs, it is especially usefull when you also want to pad certain parts of desired string or when you want to specify the number of digit. See ?sprintf for the several options.

Another variant would be to use pmap from purrr:

pmap(d[2:4], paste, sep = '-')

Note: this pmap solution only works when the columns aren't factors.

A benchmark on a larger dataset:

# create a larger dataset
d2 <- d[sample(1:3,1e6,TRUE),]
# benchmark
library(microbenchmark)
microbenchmark(
  docp = do.call(paste, c(d2[cols], sep="-")),
  appl = apply( d2[, cols ] , 1 , paste , collapse = "-" ),
  tidr = tidyr::unite_(d2, "x", cols, sep="-")$x,
  docs = do.call(sprintf, c(d2[cols], '%s-%s-%s')),
  times=10)

results in:

Unit: milliseconds
 expr       min        lq      mean    median        uq       max neval cld
 docp  214.1786  226.2835  297.1487  241.6150  409.2495  493.5036    10 a  
 appl 3832.3252 4048.9320 4131.6906 4072.4235 4255.1347 4486.9787    10   c
 tidr  206.9326  216.8619  275.4556  252.1381  318.4249  407.9816    10 a  
 docs  413.9073  443.1550  490.6520  453.1635  530.1318  659.8400    10  b 

Used data:

d <- data.frame(a = 1:3, b = c('a','b','c'), c = c('d','e','f'), d = c('g','h','i')) 

subprocess.Popen takes a cwd argument to set the Current Working Directory; you'll also want to escape your backslashes ('d:\\test\\local'), or use r'd:\test\local' so that the backslashes aren't interpreted as escape sequences by Python. The way you have it written, the \t part will be translated to a tab.

So, your new line should look like:

subprocess.Popen(r'c:\mytool\tool.exe', cwd=r'd:\test\local')

To use your Python script path as cwd, import os and define cwd using this:

os.path.dirname(os.path.realpath(__file__)) 

Environment variable (can access anywhere/ dynamic object) is a type of variable. They are of 2 types system environment variables and user environment variables.

System variables having a predefined type and structure. That are used for system function. Values that produced by the system are stored in the system variable. They generally indicated by using capital letters Example: HOME,PATH,USER

User environment variables are the variables that determined by the user,and are represented by using small letters.

private readonly UserManager<AppUser> _userManager;

 public AccountsController(UserManager<AppUser> userManager)
 {
            _userManager = userManager;
 }

[Authorize(Policy = "ApiUser")]
[HttpGet("api/accounts/GetProfile", Name = "GetProfile")]
public async Task<IActionResult> GetProfile()
{
   var userId = ((ClaimsIdentity)User.Identity).FindFirst("Id").Value;
   var user = await _userManager.FindByIdAsync(userId);

   ProfileUpdateModel model = new ProfileUpdateModel();
   model.Email = user.Email;
   model.FirstName = user.FirstName;
   model.LastName = user.LastName;
   model.PhoneNumber = user.PhoneNumber;

   return new OkObjectResult(model);
}

Python 3 handles strings a bit different. Originally there was just one type for strings: str. When unicode gained traction in the '90s the new unicode type was added to handle Unicode without breaking pre-existing code¹. This is effectively the same as str but with multibyte support.

In Python 3 there are two different types:

• The bytes type. This is just a sequence of bytes, Python doesn't know anything about how to interpret this as characters.
• The str type. This is also a sequence of bytes, but Python knows how to interpret those bytes as characters.
• The separate unicode type was dropped. str now supports unicode.

In Python 2 implicitly assuming an encoding could cause a lot of problems; you could end up using the wrong encoding, or the data may not have an encoding at all (e.g. it’s a PNG image).
Explicitly telling Python which encoding to use (or explicitly telling it to guess) is often a lot better and much more in line with the "Python philosophy" of "explicit is better than implicit".

This change is incompatible with Python 2 as many return values have changed, leading to subtle problems like this one; it's probably the main reason why Python 3 adoption has been so slow. Since Python doesn't have static typing² it's impossible to change this automatically with a script (such as the bundled 2to3).

• You can convert str to bytes with bytes('h€llo', 'utf-8'); this should produce b'H\xe2\x82\xacllo'. Note how one character was converted to three bytes.
• You can convert bytes to str with b'H\xe2\x82\xacllo'.decode('utf-8').

Of course, UTF-8 may not be the correct character set in your case, so be sure to use the correct one.

In your specific piece of code, nextline is of type bytes, not str, reading stdout and stdin from subprocess changed in Python 3 from str to bytes. This is because Python can't be sure which encoding this uses. It probably uses the same as sys.stdin.encoding (the encoding of your system), but it can't be sure.

You need to replace:

sys.stdout.write(nextline)

with:

sys.stdout.write(nextline.decode('utf-8'))

or maybe:

sys.stdout.write(nextline.decode(sys.stdout.encoding))

You will also need to modify if nextline == '' to if nextline == b'' since:

>>> '' == b''
False

Also see the Python 3 ChangeLog, PEP 358, and PEP 3112.

¹ There are some neat tricks you can do with ASCII that you can't do with multibyte character sets; the most famous example is the "xor with space to switch case" (e.g. chr(ord('a') ^ ord(' ')) == 'A') and "set 6th bit to make a control character" (e.g. ord('\t') + ord('@') == ord('I')). ASCII was designed in a time when manipulating individual bits was an operation with a non-negligible performance impact.

² Yes, you can use function annotations, but it's a comparatively new feature and little used.

Following is the method I found:

1) Make a list of files with relative paths in a file (say FilesList.txt) as follows (either space separated or line separated):

foo/AccessTestInterface.java
foo/goo/AccessTestInterfaceImpl.java

2) Use the command:

javac @FilesList.txt -d classes

This will compile all the files and put the class files inside classes directory.

Now easy way to create FilesList.txt is this: Go to your source root directory.

dir *.java /s /b > FilesList.txt

But, this will populate absolute path. Using a text editor "Replace All" the path up to source directory (include \ in the end) with "" (i.e. empty string) and Save.

What you are trying to deserialize to a Dictionary is actually a Javascript object serialized to JSON. In Javascript, you can use this object as an associative array, but really it's an object, as far as the JSON standard is concerned.

So you would have no problem deserializing what you have with a standard JSON serializer (like the .net ones, DataContractJsonSerializer and JavascriptSerializer) to an object (with members called AppName, AnotherAppName, etc), but to actually interpret this as a dictionary you'll need a serializer that goes further than the Json spec, which doesn't have anything about Dictionaries as far as I know.

One such example is the one everybody uses: JSON .net

There is an other solution if you don't want to use an external lib, which is to convert your Javascript object to a list before serializing it to JSON.

var myList = [];
$.each(myObj, function(key, value) { myList.push({Key:key, Value:value}) });

now if you serialize myList to a JSON object, you should be capable of deserializing to a List<KeyValuePair<string, ValueDescription>> with any of the aforementioned serializers. That list would then be quite obvious to convert to a dictionary.

Note: ValueDescription being this class:

public class ValueDescription
{
    public string Description { get; set; }
    public string Value { get; set; }
}

I checked play.google.com/store/apps/details?id=and.p2l&hl=en They are not locating the user's current location at all. So based on the number itself they are judging the location of the user. Like if the number starts from 240 ( in US) they they are saying location is Maryland but the person can be in California. So i don't think they are getting the user's location through LocationListner of Java at all.

The Symfony documentation now explicitly shows how to do this:

$em = $this->getDoctrine()->getManager();
$query = $em->createQuery(
    'SELECT p
    FROM AppBundle:Product p
    WHERE p.price > :price
    ORDER BY p.price ASC'
)->setParameter('price', '19.99');    
$products = $query->getResult();

From http://symfony.com/doc/2.8/book/doctrine.html#querying-for-objects-with-dql

My machine configurations :

Operating System : Windows 10 Version 1703 (x64)

I faced this error while debugging my C# .Net project in Visual Studio 2017 Community edition. I was calling a native method by performing p/invoke on a C++ assembly loaded at run-time. I encountered the very same error reported by OP.

I realized that Visual Studio was launched with a user account which was not an administrator on the machine. Then I relaunched Visual Studio under a different user account which was an administrator on the machine. That's all. My problem got resolved and I didn't face the issue again.

One thing to note is that the method which was being invoked on C++ assembly was supposed to write few things in registry. I didn't go debugging the C++ code to do some RCA but I see a possibility that the whole thing was failing as administrative privileges are required to write registry in Windows 10 operating system. So earlier when Visual Studio was running under a user account which didn't have administrative privileges on the machine, then the native calls were failing.

r stands for a raw string, so things like \ will be automatically escaped by Python.

Normally, if you wanted your pattern to include something like a backslash you'd need to escape it with another backslash. raw strings eliminate this problem.

short explanation

In your case, it does not matter much but it's a good habit to get into early otherwise something like \b will bite you in the behind if you are not careful (will be interpreted as backspace character instead of word boundary)

As per re.match vs re.search here's an example that will clarify it for you:

>>> import re
>>> testString = 'hello world'
>>> re.match('hello', testString)
<_sre.SRE_Match object at 0x015920C8>
>>> re.search('hello', testString)
<_sre.SRE_Match object at 0x02405560>
>>> re.match('world', testString)
>>> re.search('world', testString)
<_sre.SRE_Match object at 0x015920C8>

So search will find a match anywhere, match will only start at the beginning

Sometimes implicit wait seems to get overridden and wait time is cut short. [@eugene.polschikov] had good documentation on the whys. I have found in my testing and coding with Selenium 2 that implicit waits are good but occasionally you have to wait explicitly.

It is better to avoid directly calling for a thread to sleep, but sometimes there isn't a good way around it. However, there are other Selenium provided wait options that help. waitForPageToLoad and waitForFrameToLoad have proved especially useful.

The problem here is that your timer starts a thread and when it runs the callback function, the callback function ( updatelistview) is accessing controls on UI thread so this can not be done becuase of this

The iterator_facade documentation from Boost.Iterator provides what looks like a nice tutorial on implementing iterators for a linked list. Could you use that as a starting point for building a random-access iterator over your container?

If nothing else, you can take a look at the member functions and typedefs provided by iterator_facade and use it as a starting point for building your own.

Well one way to do it would be saving the base method and then calling it from the overriden method, like so

MyClass.prototype._do_base = MyClass.prototype.do;
MyClass.prototype.do = function(){  

    if (this.name === 'something'){

        //do something new

    }else{
        return this._do_base();
    }

};

I decided to share my solution, because although many answers provided here were helpful, I still had this problem. In my case, I am using JSF 2.3, jdk10, jee8, cdi 2.0 for my new project and I did run my app on wildfly 12, starting server with parameter standalone.sh -Dee8.preview.mode=true as recommended on wildfly website. The problem with "bean resolved to null” disappeared after downloading wildfly 13. Uploading exactly the same war to wildfly 13 made it all work.

The selected answer will work in everything except IE. I wrote a tutorial on how to make it work cross browser = http://www.andy-howard.com/how-to-play-sounds-cross-browser-including-ie/index.html

Here is the function I wrote;

function playSomeSounds(soundPath)
 {

 var trident = !!navigator.userAgent.match(/Trident\/7.0/);
 var net = !!navigator.userAgent.match(/.NET4.0E/);
 var IE11 = trident && net
 var IEold = ( navigator.userAgent.match(/MSIE/i) ? true : false );
 if(IE11 || IEold){
 document.all.sound.src = soundPath;
 }
 else
 {
 var snd = new Audio(soundPath); // buffers automatically when created
 snd.play();
 }
 };

You also need to add the following tag to the html page:

<bgsound id="sound">

Finally you can call the function and simply pass through the path here:

playSomeSounds("sounds/welcome.wav");

function count(){
    var c= 0;
    for(var p in this) if(this.hasOwnProperty(p))++c;
    return c;
}

var O={a: 1, b: 2, c: 3};

count.call(O);

try the following program

using System;
using System.Data;
using System.Windows.Forms;
using System.Data.SqlClient;

namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }

    private void button1_Click(object sender, EventArgs e)
    {
        System.Data.OleDb.OleDbConnection MyConnection;
        System.Data.DataSet DtSet;
        System.Data.OleDb.OleDbDataAdapter MyCommand;
        MyConnection = new System.Data.OleDb.OleDbConnection(@"provider=Microsoft.Jet.OLEDB.4.0;Data Source='c:\csharp.net-informations.xls';Extended Properties=Excel 8.0;");
        MyCommand = new System.Data.OleDb.OleDbDataAdapter("select * from [Sheet1$]", MyConnection);
        MyCommand.TableMappings.Add("Table", "Net-informations.com");
        DtSet = new System.Data.DataSet();
        MyCommand.Fill(DtSet);
        dataGridView1.DataSource = DtSet.Tables[0];
        MyConnection.Close();
    }
}
} 

While you can execute backup commands from PHP, they don't really have anything to do with PHP. It's all about MySQL.

I'd suggest using the mysqldump utility to back up your database. The documentation can be found here : http://dev.mysql.com/doc/refman/5.1/en/mysqldump.html.

The basic usage of mysqldump is

mysqldump -u user_name -p name-of-database >file_to_write_to.sql

You can then restore the backup with a command like

mysql -u user_name -p <file_to_read_from.sql

Do you have access to cron? I'd suggest making a PHP script that runs mysqldump as a cron job. That would be something like

<?php

$filename='database_backup_'.date('G_a_m_d_y').'.sql';

$result=exec('mysqldump database_name --password=your_pass --user=root --single-transaction >/var/backups/'.$filename,$output);

if(empty($output)){/* no output is good */}
else {/* we have something to log the output here*/}

If mysqldump is not available, the article describes another method, using the SELECT INTO OUTFILE and LOAD DATA INFILE commands. The only connection to PHP is that you're using PHP to connect to the database and execute the SQL commands. You could also do this from the command line MySQL program, the MySQL monitor.

It's pretty simple, you're writing an SQL file with one command, and loading/executing it when it's time to restore.

You can find the docs for select into outfile here (just search the page for outfile). LOAD DATA INFILE is essentially the reverse of this. See here for the docs.

This work for me.

("your string goes here").All(char.IsDigit)

Xcode 10, Swift 4

Wrapping the Text for a label can also be done on Storyboard by selecting the Label, and using Attributes Inspector.

Lines = 0 Linebreak = Word Wrap

I like using extension methods for conversions like this, even if they just wrap standard library methods. In the case of hexadecimal conversions, I use the following hand-tuned (i.e., fast) algorithms:

public static string ToHex(this byte[] bytes)
{
    char[] c = new char[bytes.Length * 2];

    byte b;

    for(int bx = 0, cx = 0; bx < bytes.Length; ++bx, ++cx) 
    {
        b = ((byte)(bytes[bx] >> 4));
        c[cx] = (char)(b > 9 ? b + 0x37 + 0x20 : b + 0x30);

        b = ((byte)(bytes[bx] & 0x0F));
        c[++cx]=(char)(b > 9 ? b + 0x37 + 0x20 : b + 0x30);
    }

    return new string(c);
}

public static byte[] HexToBytes(this string str)
{
    if (str.Length == 0 || str.Length % 2 != 0)
        return new byte[0];

    byte[] buffer = new byte[str.Length / 2];
    char c;
    for (int bx = 0, sx = 0; bx < buffer.Length; ++bx, ++sx)
    {
        // Convert first half of byte
        c = str[sx];
        buffer[bx] = (byte)((c > '9' ? (c > 'Z' ? (c - 'a' + 10) : (c - 'A' + 10)) : (c - '0')) << 4);

        // Convert second half of byte
        c = str[++sx];
        buffer[bx] |= (byte)(c > '9' ? (c > 'Z' ? (c - 'a' + 10) : (c - 'A' + 10)) : (c - '0'));
    }

    return buffer;
}

If you are testing simple new Thread(runnable).run() You can mock Thread to run the runnable sequentially

For instance, if the code of the tested object invokes a new thread like this

Class TestedClass {
    public void doAsychOp() {
       new Thread(new myRunnable()).start();
    }
}

Then mocking new Threads and run the runnable argument sequentially can help

@Mock
private Thread threadMock;

@Test
public void myTest() throws Exception {
    PowerMockito.mockStatic(Thread.class);
    //when new thread is created execute runnable immediately 
    PowerMockito.whenNew(Thread.class).withAnyArguments().then(new Answer<Thread>() {
        @Override
        public Thread answer(InvocationOnMock invocation) throws Throwable {
            // immediately run the runnable
            Runnable runnable = invocation.getArgumentAt(0, Runnable.class);
            if(runnable != null) {
                runnable.run();
            }
            return threadMock;//return a mock so Thread.start() will do nothing         
        }
    }); 
    TestedClass testcls = new TestedClass()
    testcls.doAsychOp(); //will invoke myRunnable.run in current thread
    //.... check expected 
}

You can ignore the peer dependency warnings by using the --force flag with Angular cli when updating dependencies.

ng update @angular/cli @angular/core --force

For a full list of options, check the docs: https://angular.io/cli/update

This is the solution for my old question:

I implemented my own ContextResolver in order to enable the DeserializationConfig.Feature.ACCEPT_SINGLE_VALUE_AS_ARRAY feature.

package org.lig.hadas.services.mapper;

import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.ext.ContextResolver;
import javax.ws.rs.ext.Provider;

import org.codehaus.jackson.map.DeserializationConfig;
import org.codehaus.jackson.map.ObjectMapper;

@Produces(MediaType.APPLICATION_JSON)
@Provider
public class ObjectMapperProvider implements ContextResolver<ObjectMapper>
{
   ObjectMapper mapper;

   public ObjectMapperProvider(){
       mapper = new ObjectMapper();
       mapper.configure(DeserializationConfig.Feature.ACCEPT_SINGLE_VALUE_AS_ARRAY, true);
   }
   @Override
   public ObjectMapper getContext(Class<?> type) {
       return mapper;
   }
}

And in the web.xml I registered my package into the servlet definition...

<servlet>
    <servlet-name>...</servlet-name>
    <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
    <init-param>
        <param-name>com.sun.jersey.config.property.packages</param-name>
        <param-value>...;org.lig.hadas.services.mapper</param-value>        
    </init-param>
    ...
</servlet>

... all the rest is transparently done by jersey/jackson.

For those, who want to use Shell.Application.Namespace.Folder.CopyHere() and want to hide progress bars while copying, or use more options, the documentation is here:
https://docs.microsoft.com/en-us/windows/desktop/shell/folder-copyhere

To use powershell and hide progress bars and disable confirmations you can use code like this:

# We should create folder before using it for shell operations as it is required
New-Item -ItemType directory -Path "C:\destinationDir" -Force

$shell = New-Object -ComObject Shell.Application
$zip = $shell.Namespace("C:\archive.zip")
$items = $zip.items()
$shell.Namespace("C:\destinationDir").CopyHere($items, 1556)

Limitations of use of Shell.Application on windows core versions:
https://docs.microsoft.com/en-us/windows-server/administration/server-core/what-is-server-core

On windows core versions, by default the Microsoft-Windows-Server-Shell-Package is not installed, so shell.applicaton will not work.

note: Extracting archives this way will take a long time and can slow down windows gui

A Unix timestamp is simply the number of seconds since January the first 1970, so to add 24 hours to a Unix timestamp we just add the number of seconds in 24 hours. (24 * 60 *60)

time() + 24*60*60;

Although, this may not be advisable.

If you want to get customer details, even when the user doesn’t create an account, but only makes an order, you could just query it, directly from the database.

Although, there may be performance issues, querying directly. But this surely works 100%.

You can search by post_id and meta_keys.

 global $wpdb; // Get the global $wpdb
 $order_id = {Your Order Id}

 $table = $wpdb->prefix . 'postmeta';
 $sql = 'SELECT * FROM `'. $table . '` WHERE post_id = '. $order_id;

        $result = $wpdb->get_results($sql);
        foreach($result as $res) {
            if( $res->meta_key == 'billing_phone'){
                   $phone = $res->meta_value;      // get billing phone
            }
            if( $res->meta_key == 'billing_first_name'){
                   $firstname = $res->meta_value;   // get billing first name
            }

            // You can get other values
            // billing_last_name
            // billing_email
            // billing_country
            // billing_address_1
            // billing_address_2
            // billing_postcode
            // billing_state

            // customer_ip_address
            // customer_user_agent

            // order_currency
            // order_key
            // order_total
            // order_shipping_tax
            // order_tax

            // payment_method_title
            // payment_method

            // shipping_first_name
            // shipping_last_name
            // shipping_postcode
            // shipping_state
            // shipping_city
            // shipping_address_1
            // shipping_address_2
            // shipping_company
            // shipping_country
        }

This is the easiest command:

git push --set-upstream <new-origin> <branch-to-track>

For example, given the command git remote -v produces something like:

origin  ssh://[email protected]/~myself/projectr.git (fetch)
origin  ssh://[email protected]/~myself/projectr.git (push)
team    ssh://[email protected]/vbs/projectr.git (fetch)
team    ssh://[email protected]/vbs/projectr.git (push)

To change to tracking the team instead:

git push --set-upstream team master

There are several ways to define "Balanced". The main goal is to keep the depths of all nodes to be O(log(n)).

It appears to me that the balance condition you were talking about is for AVL tree.
Here is the formal definition of AVL tree's balance condition:

For any node in AVL, the height of its left subtree differs by at most 1 from the height of its right subtree.

Next question, what is "height"?

The "height" of a node in a binary tree is the length of the longest path from that node to a leaf.

There is one weird but common case:

People define the height of an empty tree to be (-1).

For example, root's left child is null:

              A  (Height = 2)
           /     \
(height =-1)       B (Height = 1) <-- Unbalanced because 1-(-1)=2 >1
                    \
                     C (Height = 0)

Two more examples to determine:

Yes, A Balanced Tree Example:

        A (h=3)
     /     \
 B(h=1)     C (h=2)        
/          /   \
D (h=0)  E(h=0)  F (h=1)
               /
              G (h=0)

No, Not A Balanced Tree Example:

        A (h=3)
     /     \
 B(h=0)     C (h=2)        <-- Unbalanced: 2-0 =2 > 1
           /   \
        E(h=1)  F (h=0)
        /     \
      H (h=0)   G (h=0)      

the computer in question is a Mac.

A macOS-only solution:

/usr/libexec/java_home -v 1.8+ --exec javac -version

Where 1.8+ is Java 1.8 or higher.

Unfortunately, the java_home helper does not set the proper return code, so checking for failure requires parsing the output (e.g. 2>&1 |grep -v "Unable") which varies based on locale.

Note, Java may also exist in /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin, but at time of writing this, I'm unaware of a JRE that installs there which contains javac as well.

Check whether you have Not Null constraint in your table columns and you are not passes the value for that column while insert/Update operations. That Causes this exception in entity framework.

You could also use:

nvidia-smi | grep "CUDA Version:" 

To retrieve the explicit line.

Uploading Files using Retrofit is Quite Simple You need to build your api interface as

public interface Api {

    String BASE_URL = "http://192.168.43.124/ImageUploadApi/";


    @Multipart
    @POST("yourapipath")
    Call<MyResponse> uploadImage(@Part("image\"; filename=\"myfile.jpg\" ") RequestBody file, @Part("desc") RequestBody desc);

}

in the above code image is the key name so if you are using php you will write $_FILES['image']['tmp_name'] to get this. And filename="myfile.jpg" is the name of your file that is being sent with the request.

Now to upload the file you need a method that will give you the absolute path from the Uri.

private String getRealPathFromURI(Uri contentUri) {
    String[] proj = {MediaStore.Images.Media.DATA};
    CursorLoader loader = new CursorLoader(this, contentUri, proj, null, null, null);
    Cursor cursor = loader.loadInBackground();
    int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
    cursor.moveToFirst();
    String result = cursor.getString(column_index);
    cursor.close();
    return result;
}

Now you can use the below code to upload your file.

 private void uploadFile(Uri fileUri, String desc) {

        //creating a file
        File file = new File(getRealPathFromURI(fileUri));

        //creating request body for file
        RequestBody requestFile = RequestBody.create(MediaType.parse(getContentResolver().getType(fileUri)), file);
        RequestBody descBody = RequestBody.create(MediaType.parse("text/plain"), desc);

        //The gson builder
        Gson gson = new GsonBuilder()
                .setLenient()
                .create();


        //creating retrofit object
        Retrofit retrofit = new Retrofit.Builder()
                .baseUrl(Api.BASE_URL)
                .addConverterFactory(GsonConverterFactory.create(gson))
                .build();

        //creating our api 
        Api api = retrofit.create(Api.class);

        //creating a call and calling the upload image method 
        Call<MyResponse> call = api.uploadImage(requestFile, descBody);

        //finally performing the call 
        call.enqueue(new Callback<MyResponse>() {
            @Override
            public void onResponse(Call<MyResponse> call, Response<MyResponse> response) {
                if (!response.body().error) {
                    Toast.makeText(getApplicationContext(), "File Uploaded Successfully...", Toast.LENGTH_LONG).show();
                } else {
                    Toast.makeText(getApplicationContext(), "Some error occurred...", Toast.LENGTH_LONG).show();
                }
            }

            @Override
            public void onFailure(Call<MyResponse> call, Throwable t) {
                Toast.makeText(getApplicationContext(), t.getMessage(), Toast.LENGTH_LONG).show();
            }
        });
    }

For more detailed explanation you can visit this Retrofit Upload File Tutorial.

Better design would be

public static YourObject getMyObject(File configFile){
    //process and create an object configure it and return it
}

• Factory design pattern

http://us2.php.net/date

echo date('Y');

For the record, this is still happening in hadoop 2.4.0. So frustrating...

I was able to follow the instructions in this link: http://grokbase.com/t/cloudera/scm-users/1288xszz7r/no-filesystem-for-scheme-hdfs

I added the following to my core-site.xml and it worked:

<property>
   <name>fs.file.impl</name>
   <value>org.apache.hadoop.fs.LocalFileSystem</value>
   <description>The FileSystem for file: uris.</description>
</property>

<property>
   <name>fs.hdfs.impl</name>
   <value>org.apache.hadoop.hdfs.DistributedFileSystem</value>
   <description>The FileSystem for hdfs: uris.</description>
</property>

If I understand you right, you can do this:

<img src="image.png" style="background-color:red;" />

In fact, you can even apply a whole background-image to the image, resulting in two "layers" without the need for multi-background support in the browser ;)

The R file can't be generated if your layout contains errors. If your res folder is empty, then it's safe to assume that there's no res/layout folder with any layouts in it, but your activity is probably calling setContentView and not finding anything -- that qualifies as a problem with your layout.

You have to include classpath to your javac and java commands

javac -cp . PackageName/*.java
java -cp . PackageName/ClassName_Having_main

suppose you have the following

Package Named: com.test Class Name: Hello (Having main) file is located inside "src/com/test/Hello.java"

from outside directory:

$ cd src
$ javac -cp . com/test/*.java
$ java -cp . com/test/Hello

• In windows the same thing will be working too, I already tried

You can use custom RelativeLayout with redefined

protected int getChildDrawingOrder (int childCount, int i)

Be aware - this method takes param i as "which view should I draw i'th". This is how ViewPager works. It sets custom drawing order in conjuction with PageTransformer.

Add this line to curl inizialization

curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);

and use getinfo before curl_close

$redirectURL = curl_getinfo($ch,CURLINFO_EFFECTIVE_URL );

es:

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_USERAGENT,'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.13) Gecko/20080311 Firefox/2.0.0.13');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT ,0); 
curl_setopt($ch, CURLOPT_TIMEOUT, 60);
$html = curl_exec($ch);
$redirectURL = curl_getinfo($ch,CURLINFO_EFFECTIVE_URL );
curl_close($ch);

To complete JonasG's answer (who left out tab bar controllers while traversing), here is my version of returning the currently visible view controller:

- (UIViewController*)topViewController {
    return [self topViewControllerWithRootViewController:[UIApplication sharedApplication].keyWindow.rootViewController];
}

- (UIViewController*)topViewControllerWithRootViewController:(UIViewController*)rootViewController {
    if ([rootViewController isKindOfClass:[UITabBarController class]]) {
        UITabBarController* tabBarController = (UITabBarController*)rootViewController;
        return [self topViewControllerWithRootViewController:tabBarController.selectedViewController];
    } else if ([rootViewController isKindOfClass:[UINavigationController class]]) {
        UINavigationController* navigationController = (UINavigationController*)rootViewController;
        return [self topViewControllerWithRootViewController:navigationController.visibleViewController];
    } else if (rootViewController.presentedViewController) {
        UIViewController* presentedViewController = rootViewController.presentedViewController;
        return [self topViewControllerWithRootViewController:presentedViewController];
    } else {
        return rootViewController;
    }
}

I don't think location.LatLng is working, however this works:

results[0].geometry.location.lat(), results[0].geometry.location.lng()

Found it while exploring Get Lat Lon source code.

Here you can find also add watermark codes in this class :

public class ImageProcessor
    {
        public Bitmap Resize(Bitmap image, int newWidth, int newHeight, string message)
        {
            try
            {
                Bitmap newImage = new Bitmap(newWidth, Calculations(image.Width, image.Height, newWidth));

                using (Graphics gr = Graphics.FromImage(newImage))
                {
                    gr.SmoothingMode = SmoothingMode.AntiAlias;
                    gr.InterpolationMode = InterpolationMode.HighQualityBicubic;
                    gr.PixelOffsetMode = PixelOffsetMode.HighQuality;
                    gr.DrawImage(image, new Rectangle(0, 0, newImage.Width, newImage.Height));

                    var myBrush = new SolidBrush(Color.FromArgb(70, 205, 205, 205));

                    double diagonal = Math.Sqrt(newImage.Width * newImage.Width + newImage.Height * newImage.Height);

                    Rectangle containerBox = new Rectangle();

                    containerBox.X = (int)(diagonal / 10);
                    float messageLength = (float)(diagonal / message.Length * 1);
                    containerBox.Y = -(int)(messageLength / 1.6);

                    Font stringFont = new Font("verdana", messageLength);

                    StringFormat sf = new StringFormat();

                    float slope = (float)(Math.Atan2(newImage.Height, newImage.Width) * 180 / Math.PI);

                    gr.RotateTransform(slope);
                    gr.DrawString(message, stringFont, myBrush, containerBox, sf);
                    return newImage;
                }
            }
            catch (Exception exc)
            {
                throw exc;
            }
        }

        public int Calculations(decimal w1, decimal h1, int newWidth)
        {
            decimal height = 0;
            decimal ratio = 0;


            if (newWidth < w1)
            {
                ratio = w1 / newWidth;
                height = h1 / ratio;

                return height.To<int>();
            }

            if (w1 < newWidth)
            {
                ratio = newWidth / w1;
                height = h1 * ratio;
                return height.To<int>();
            }

            return height.To<int>();
        }

    }

FacesContext.addMessage(String, FacesMessage) requires the component's clientId, not it's id. If you're wondering why, think about having a control as a child of a dataTable, stamping out different values with the same control for each row - it would be possible to have a different message printed for each row. The id is always the same; the clientId is unique per row.

So "myform:mybutton" is the correct value, but hard-coding this is ill-advised. A lookup would create less coupling between the view and the business logic and would be an approach that works in more restrictive environments like portlets.

<f:view>
  <h:form>
    <h:commandButton id="mybutton" value="click"
      binding="#{showMessageAction.mybutton}"
      action="#{showMessageAction.validatePassword}" />
    <h:message for="mybutton" />
  </h:form>
</f:view>

Managed bean logic:

/** Must be request scope for binding */
public class ShowMessageAction {

    private UIComponent mybutton;

    private boolean isOK = false;

    public String validatePassword() {
        if (isOK) {
            return "ok";
        }
        else {
            // invalid
            FacesMessage message = new FacesMessage("Invalid password length");
            FacesContext context = FacesContext.getCurrentInstance();
            context.addMessage(mybutton.getClientId(context), message);
        }
        return null;
    }

    public void setMybutton(UIComponent mybutton) {
        this.mybutton = mybutton;
    }

    public UIComponent getMybutton() {
        return mybutton;
    }
}

The <a> tag without the "href" can be handy when using multi-level menus and you need to expand the next level but don't want that menu label to be an active link. I have never had any issues using it that way.

I've checked almost all solutions from above and only with npm-run-all I was able to solve all problems. Main advantage over all other solution is an ability to run script with arguments.

{
  "test:static-server": "cross-env NODE_ENV=test node server/testsServer.js",
  "test:jest": "cross-env NODE_ENV=test jest",
  "test": "run-p test:static-server \"test:jest -- {*}\" --",
  "test:coverage": "npm run test -- --coverage",
  "test:watch": "npm run test -- --watchAll",
}

Note run-p is shortcut for npm-run-all --parallel

This allows me to run command with arguments like npm run test:watch -- Something.

EDIT:

There is one more useful option for npm-run-all:

 -r, --race   - - - - - - - Set the flag to kill all tasks when a task
                            finished with zero. This option is valid only
                            with 'parallel' option.

Add -r to your npm-run-all script to kill all processes when one finished with code 0. This is especially useful when you run a HTTP server and another script that use the server.

  "test": "run-p -r test:static-server \"test:jest -- {*}\" --",

$.inArray returns the index of the element if found or -1 if it isn't -- not a boolean value. So the correct is

if(jQuery.inArray("test", myarray) != -1) {
    console.log("is in array");
} else {
    console.log("is NOT in array");
} 

First of all I'd like to say that I 100% agree with John Saunders that you must avoid loops in SQL in most cases especially in production.

But occasionally as a one time thing to populate a table with a hundred records for testing purposes IMHO it's just OK to indulge yourself to use a loop.

For example in your case to populate your table with records with hospital ids between 16 and 100 and make emails and descriptions distinct you could've used

CREATE PROCEDURE populateHospitals
AS
DECLARE @hid INT;
SET @hid=16;
WHILE @hid < 100
BEGIN 
    INSERT hospitals ([Hospital ID], Email, Description) 
    VALUES(@hid, 'user' + LTRIM(STR(@hid)) + '@mail.com', 'Sample Description' + LTRIM(STR(@hid))); 
    SET @hid = @hid + 1;
END

And result would be

ID   Hospital ID Email            Description          
---- ----------- ---------------- ---------------------
1    16          [email protected]  Sample Description16 
2    17          [email protected]  Sample Description17 
...                                                    
84   99          [email protected]  Sample Description99 

1. Go to XCode > Preferences > Fonts & Color
2. Double click on a font entry to get the Font inspector window
3. Select all font entries with sizes you'd like to increase/decrease
4. In the Font inspector window select the same font (e.g. All Fonts > Menlo > Regular > 14)

Watch out because there's no undo!

I just want to post my solution. Previous answers was pretty helpful for my research. I use length-stream to get the size of the stream, but the problem here is that the callback is fired near the end of the stream, so i also use stream-cache to cache the stream and pipe it to res object once i know the content-length. In case on an error,

var StreamCache = require('stream-cache');
var lengthStream = require('length-stream');

var _streamFile = function(res , stream , cb){
    var cache = new StreamCache();

    var lstream = lengthStream(function(length) {
        res.header("Content-Length", length);
        cache.pipe(res);
    });

    stream.on('error', function(err){
        return cb(err);
    });

    stream.on('end', function(){
        return cb(null , true);
    });

    return stream.pipe(lstream).pipe(cache);
}

You could create a function who consumes an list of int, transforms in string to concatenate and cast do int again, something like this:

import random

def generate_random_number(length):
    return int(''.join([str(random.randint(0,10)) for _ in range(length)]))

Well, what is the data source? Your action could take a few defaulted arguments, i.e.

ActionResult Search(string query, int startIndex, int pageSize) {...}

defaulted in the routes setup so that startIndex is 0 and pageSize is (say) 20:

        routes.MapRoute("Search", "Search/{query}/{startIndex}",
                        new
                        {
                            controller = "Home", action = "Search",
                            startIndex = 0, pageSize = 20
                        });

To split the feed, you can use LINQ quite easily:

var page = source.Skip(startIndex).Take(pageSize);

(or do a multiplication if you use "pageNumber" rather than "startIndex")

With LINQ-toSQL, EF, etc - this should "compose" down to the database, too.

You should then be able to use action-links to the next page (etc):

<%=Html.ActionLink("next page", "Search", new {
                query, startIndex = startIndex + pageSize, pageSize }) %>

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <WebView
        android:id="@+id/webView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

</RelativeLayout>

MainActivity.java

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.webkit.WebView;
import android.webkit.WebViewClient;

import com.bluapp.androidview.R;

public class WebViewActivity3 extends AppCompatActivity {
    private WebView webView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_web_view3);
        webView = (WebView) findViewById(R.id.webView);
        webView.setWebViewClient(new WebViewClient());
        webView.getSettings().setJavaScriptEnabled(true);
        webView.loadUrl("file:///android_asset/webview1.html");


        webView.setWebViewClient(new WebViewClient(){
            public void onPageFinished(WebView view, String weburl){
                webView.loadUrl("javascript:testEcho('Javascript function in webview')");
            }
        });
    }
}

assets file

<!DOCTYPE html PUBLIC "-//WAPFORUM//DTD XHTML Mobile 1.0//EN" "http://www.wapforum.org/DTD/xhtml-mobile10.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>WebView1</title>
<meta forua="true" http-equiv="Cache-Control" content="max-age=0"/>
</head>

<body style="background-color:#212121">
<script type="text/javascript">
function testEcho(p1){
document.write(p1);
}
</script>
</body>

</html>

There are a few installs you may need to apply for ASP.NET MVC 5 support in Visual Studio 2012. Update 4 seems to include the Web Tools update now.

• Windows 8.1 SDK
• Visual Studio 2012 Update 4
• ASP.NET and Web Tools 2013.1 for Visual Studio 2012

You don't have to install the full Windows 8.1 SDK if you are just looking for the option to build web applications, just the .NET Framework 4.5.1 option in the installer. The full install is about 1.1 GB, but just the .NET installer is only 72 MB.

Just add below lines in your POJO before start of class ,and your issue is resolved. @Produces("application/json") @XmlRootElement See example import javax.ws.rs.Produces; import javax.xml.bind.annotation.XmlRootElement;

 /**
 * @author manoj.kumar
 * @email [email protected]
 */
 @Produces("application/json")
 @XmlRootElement  
 public class User {

 private String username;
 private String password;
 private String email;
 public String getUsername() {
 return username;
 }
 public void setUsername(String username) {
     this.username = username;
 }
 public String getPassword() {
     return password;
 }
 public void setPassword(String password) {
     this.password = password;
 }
 public String getEmail() {
    return email;
 }
 public void setEmail(String email) {
    this.email = email;
 }

}
add below lines inside of your web.xml
<init-param>
    <param-name>com.sun.jersey.api.json.POJOMappingFeature</param-name>
    <param-value>true</param-value>
</init-param>  
Now recompile your webservice everything would work!!!

**If you want hibernate to print generated sql queries with real values instead of question marks.**
**add following entry in hibernate.cfg.xml/hibernate.properties:**
show_sql=true
format_sql=true
use_sql_comments=true

**And add following entry in log4j.properties :**
log4j.logger.org.hibernate=INFO, hb
log4j.logger.org.hibernate.SQL=DEBUG
log4j.logger.org.hibernate.type=TRACE
log4j.appender.hb=org.apache.log4j.ConsoleAppender
log4j.appender.hb.layout=org.apache.log4j.PatternLayout

I have looked through all above answers, all of them use third-party library to solve it. It's have a simple solution in Node's API. e.g

const fs= require('fs')

let stream = fs.createReadStream('<filename>', { autoClose: true })

stream.on('data', chunk => {
    let row = chunk.toString('ascii')
}))

Additional relevant info: A common need is to pass the ID of the object represented by the marker to some ajax call for the purpose of fetching more info from the server.

It seems that when we do:

marker.on('click', function(e) {...

The e points to a MouseEvent, which does not let us get to the marker object. But there is a built-in this object which strangely, requires us to use this.options to get to the options object which let us pass anything we need. In the above case, we can pass some ID in an option, let's say objid then within the function above, we can get the value by invoking: this.options.objid

Can someone help me with the exact syntax?

It's a three-step process, and it involves modifying the openssl.cnf file. You might be able to do it with only command line options, but I don't do it that way.

Find your openssl.cnf file. It is likely located in /usr/lib/ssl/openssl.cnf:

$ find /usr/lib -name openssl.cnf
/usr/lib/openssl.cnf
/usr/lib/openssh/openssl.cnf
/usr/lib/ssl/openssl.cnf

On my Debian system, /usr/lib/ssl/openssl.cnf is used by the built-in openssl program. On recent Debian systems it is located at /etc/ssl/openssl.cnf

You can determine which openssl.cnf is being used by adding a spurious XXX to the file and see if openssl chokes.

First, modify the req parameters. Add an alternate_names section to openssl.cnf with the names you want to use. There are no existing alternate_names sections, so it does not matter where you add it.

[ alternate_names ]

DNS.1        = example.com
DNS.2        = www.example.com
DNS.3        = mail.example.com
DNS.4        = ftp.example.com

Next, add the following to the existing [ v3_ca ] section. Search for the exact string [ v3_ca ]:

subjectAltName      = @alternate_names

You might change keyUsage to the following under [ v3_ca ]:

keyUsage = digitalSignature, keyEncipherment

digitalSignature and keyEncipherment are standard fare for a server certificate. Don't worry about nonRepudiation. It's a useless bit thought up by computer science guys/gals who wanted to be lawyers. It means nothing in the legal world.

In the end, the IETF (RFC 5280), browsers and CAs run fast and loose, so it probably does not matter what key usage you provide.

Second, modify the signing parameters. Find this line under the CA_default section:

# Extension copying option: use with caution.
# copy_extensions = copy

And change it to:

# Extension copying option: use with caution.
copy_extensions = copy

This ensures the SANs are copied into the certificate. The other ways to copy the DNS names are broken.

Third, generate your self-signed certificate:

$ openssl genrsa -out private.key 3072
$ openssl req -new -x509 -key private.key -sha256 -out certificate.pem -days 730
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
...

Finally, examine the certificate:

$ openssl x509 -in certificate.pem -text -noout
Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number: 9647297427330319047 (0x85e215e5869042c7)
    Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=US, ST=MD, L=Baltimore, O=Test CA, Limited, CN=Test CA/[email protected]
        Validity
            Not Before: Feb  1 05:23:05 2014 GMT
            Not After : Feb  1 05:23:05 2016 GMT
        Subject: C=US, ST=MD, L=Baltimore, O=Test CA, Limited, CN=Test CA/[email protected]
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (3072 bit)
                Modulus:
                    00:e2:e9:0e:9a:b8:52:d4:91:cf:ed:33:53:8e:35:
                    ...
                    d6:7d:ed:67:44:c3:65:38:5d:6c:94:e5:98:ab:8c:
                    72:1c:45:92:2c:88:a9:be:0b:f9
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Subject Key Identifier:
                34:66:39:7C:EC:8B:70:80:9E:6F:95:89:DB:B5:B9:B8:D8:F8:AF:A4
            X509v3 Authority Key Identifier:
                keyid:34:66:39:7C:EC:8B:70:80:9E:6F:95:89:DB:B5:B9:B8:D8:F8:AF:A4

            X509v3 Basic Constraints: critical
                CA:FALSE
            X509v3 Key Usage:
                Digital Signature, Non Repudiation, Key Encipherment, Certificate Sign
            X509v3 Subject Alternative Name:
                DNS:example.com, DNS:www.example.com, DNS:mail.example.com, DNS:ftp.example.com
    Signature Algorithm: sha256WithRSAEncryption
         3b:28:fc:e3:b5:43:5a:d2:a0:b8:01:9b:fa:26:47:8e:5c:b7:
         ...
         71:21:b9:1f:fa:30:19:8b:be:d2:19:5a:84:6c:81:82:95:ef:
         8b:0a:bd:65:03:d1

function sendAjaxRequest(element,urlToSend) {
             var clickedButton = element;
              $.ajax({type: "POST",
                  url: urlToSend,
                  data: { id: clickedButton.val(), access_token: $("#access_token").val() },
                  success:function(result){
                    alert('ok');
                  },
                 error:function(result)
                  {
                  alert('error');
                 }
             });
     }

       $(document).ready(function(){
          $("#button_1").click(function(e){
              e.preventDefault();
              sendAjaxRequest($(this),'/pages/test/');
          });

          $("#button_2").click(function(e){
              e.preventDefault();
              sendAjaxRequest($(this),'/pages/test/');
          });
        });

1. created as separate function for sending the ajax request.
2. Kept second parameter as URL because in future you want to send data to different URL

If you are getting $scope binding errors make sure you wrap the click event code on a setTimeout Function.

VIEW

<input id="upload"
    type="file"
    ng-file-select="onFileSelect($files)"
    style="display: none;">

<button type="button"
    ng-click="clickUpload()">Upload</button>

CONTROLLER

$scope.clickUpload = function(){
    setTimeout(function () {
      angular.element('#upload').trigger('click');
    }, 0);
};

Another way to add a default namespace to an XML Document before feeding it to JAXB is to use JDom:

1. Parse XML to a Document
2. Iterate through and set namespace on all Elements
3. Unmarshall using a JDOMSource

Like this:

public class XMLObjectFactory {
    private static Namespace DEFAULT_NS = Namespace.getNamespace("http://tempuri.org/");

    public static Object createObject(InputStream in) {
        try {
            SAXBuilder sb = new SAXBuilder(false);
            Document doc = sb.build(in);
            setNamespace(doc.getRootElement(), DEFAULT_NS, true);
            Source src = new JDOMSource(doc);
            JAXBContext context = JAXBContext.newInstance("org.tempuri");
            Unmarshaller unmarshaller = context.createUnmarshaller();
            JAXBElement root = unmarshaller.unmarshal(src);
            return root.getValue();
        } catch (Exception e) {
            throw new RuntimeException("Failed to create Object", e);
        }
    }

    private static void setNamespace(Element elem, Namespace ns, boolean recurse) {
        elem.setNamespace(ns);
        if (recurse) {
            for (Object o : elem.getChildren()) {
                setNamespace((Element) o, ns, recurse);
            }
        }
    }

Where a is the slice, and i is the index of the element you want to delete:

a = append(a[:i], a[i+1:]...)

... is syntax for variadic arguments in Go.

Basically, when defining a function it puts all the arguments that you pass into one slice of that type. By doing that, you can pass as many arguments as you want (for example, fmt.Println can take as many arguments as you want).

Now, when calling a function, ... does the opposite: it unpacks a slice and passes them as separate arguments to a variadic function.

So what this line does:

a = append(a[:0], a[1:]...)

is essentially:

a = append(a[:0], a[1], a[2])

Now, you may be wondering, why not just do

a = append(a[1:]...)

Well, the function definition of append is

func append(slice []Type, elems ...Type) []Type

So the first argument has to be a slice of the correct type, the second argument is the variadic, so we pass in an empty slice, and then unpack the rest of the slice to fill in the arguments.

To GET first paragraph of an article:

https://en.wikipedia.org/w/api.php?action=query&titles=Belgrade&prop=extracts&format=json&exintro=1

I have created short Wikipedia API docs for my own needs. There are working examples on how to get article(s), image(s) and similar.

Here is a working example :

document.cookie = "testCookie=cookieval; domain=." + 
location.hostname.split('.').reverse()[1] + "." + 
location.hostname.split('.').reverse()[0] + "; path=/"

This is a generic solution that takes the root domain from the location object and sets the cookie. The reversing is because you don't know how many subdomains you have if any.

A very simple solution is to search your file(s) for non-ascii characters using a regular expression. This will nicely highlight all the spots where they are found with a border.

Search for [^\x00-\x7F] and check the box for Regex.

The result will look like this (in dark mode):

open task manager, click in Service button and search MySql service, now you can stop and restart

The point for diamond operator is simply to reduce typing of code when declaring generic types. It doesn't have any effect on runtime whatsoever.

The only difference if you specify in Java 5 and 6,

List<String> list = new ArrayList();

is that you have to specify @SuppressWarnings("unchecked") to the list (otherwise you will get an unchecked cast warning). My understanding is that diamond operator is trying to make development easier. It's got nothing to do on runtime execution of generics at all.

So one way is to doExampleEnum valueOfOrdinal = ExampleEnum.values()[ordinal]; which works and its easy, however, as mentioned before, ExampleEnum.values() returns a new cloned array for every call. That can be unnecessarily expensive. We can solve that by caching the array like so ExampleEnum[] values = values(). It is also "dangerous" to allow our cached array to be modified. Someone could write ExampleEnum.values[0] = ExampleEnum.type2; So I would make it private with an accessor method that does not do extra copying.

private enum ExampleEnum{
    type0, type1, type2, type3;
    private static final ExampleEnum[] values = values();
    public static ExampleEnum value(int ord) {
        return values[ord];
    }
}

You would use ExampleEnum.value(ordinal) to get the enum value associated with ordinal

You can specify a new column. You also need to compute the mean along the rows, so use axis=1.

df['mean'] = df.mean(axis=1)
>>> df
       Y1961      Y1962      Y1963      Y1964      Y1965 Region       mean
0  82.567307  83.104757  83.183700  83.030338  82.831958     US  82.943612
1   2.699372   2.610110   2.587919   2.696451   2.846247     US   2.688020
2  14.131355  13.690028  13.599516  13.649176  13.649046     US  13.743824
3   0.048589   0.046982   0.046583   0.046225   0.051750     US   0.048026
4   0.553377   0.548123   0.582282   0.577811   0.620999     US   0.576518

I know this question is on Linux, but on windows I had the same issue. Turns out you have to start the command prompt in "Run As Administrator" mode for it to work. Otherwise you get the same: unable to write 'random state' error.

We can use git mv command. Example below , if we renamed file abcDEF.js to abcdef.js then we can run the following command from terminal

git mv -f .\abcDEF.js  .\abcdef.js

To add to @luke-west 's excellent answer:

When using CocoaPods

After step 2:

1. Quit XCode.
2. In the master folder, rename OLD.xcworkspace to NEW.xcworkspace.

After step 4:

1. In XCode: choose and edit Podfile from the project navigator. You should see a target clause with the OLD name. Change it to NEW.
2. Quit XCode.
3. In the project folder, delete the OLD.podspec file.
4. rm -rf Pods/
5. Run pod install.
6. Open XCode.
7. Click on your project name in the project navigator.
8. In the main pane, switch to the Build Phases tab.
9. Under Link Binary With Libraries, look for libPods-OLD.a and delete it.
10. If you have an objective-c Bridging header go to Build settings and change the location of the header from OLD/OLD-Bridging-Header.h to NEW/NEW-Bridging-Header.h
11. Clean and run.

In Java we can do it using the following statement . We need to use Jackson ObjectMapper for the same and provide the HashMap.class as the mapping class. Finally store the result as a HashMap object.

HashMap<String,String> hashMap = new ObjectMapper().readValue(jsonString, HashMap.class);

Here is the example:

SQL> set define off;
SQL> select * from dual where dummy='&var';

no rows selected

SQL> set define on
SQL> /
Enter value for var: X
old   1: select * from dual where dummy='&var'
new   1: select * from dual where dummy='X'

D
-
X

With set define off, it took a row with &var value, prompted a user to enter a value for it and replaced &var with the entered value (in this case, X).

it seems that the OP meant to find out whether the string 'Mel' exists in a particular column, not contained in a column, therefore the use of contains is not needed, and is not efficient. A simple equals-to is enough:

(a['Names']=='Mel').any()

in this way it can be checked whether such a key is available

if (Session.Dictionary.ContainsKey("Sessionkey"))  --> return Bool

There is no way to delete or read the past history.

You could try going around it by emulating history in your own memory and calling history.pushState everytime window popstate event is emitted (which is proposed by the currently accepted Mike's answer), but it has a lot of disadvantages that will result in even worse UX than not supporting the browser history at all in your dynamic web app, because:

• popstate event can happen when user goes back ~2-3 states to the past
• popstate event can happen when user goes forward

So even if you try going around it by building virtual history, it's very likely that it can also lead into a situation where you have blank history states (to which going back/forward does nothing), or where that going back/forward skips some of your history states totally.

One interesting thing is we can view the tables horizontally, without folding. we can use PAGER environment variable. psql makes use of it. you can set

export PAGER='/usr/bin/less -S'

or just less -S if its already availble in command line, if not with the proper location. -S to view unfolded lines. you can pass in any custom viewer or other options with it.

I've written more in Psql Horizontal Display

Check out the moment.js library. It works with browsers as well as with Node.JS. Allows you to write

moment().hour();

or

moment().hours();

without prior writing of any functions.

For make a list, simply do that

colors=(red orange white "light gray")

Technically is an array, but - of course - it has all list features.
Even python list are implemented with array

Most likely these classes are already defined by Bootstrap, make sure that your CSS file that you want to override the classes with is called AFTER the Bootstrap CSS.

<link rel="stylesheet" href="css/bootstrap.css" /> <!-- Call Bootstrap first -->
<link rel="stylesheet" href="css/bootstrap-override.css" /> <!-- Call override CSS second -->

Otherwise, you can put !important at the end of your CSS like this: color:#ffffff!important; but I would advise against using !important at all costs.

For,Adding System.Drawing Follow some steps: Firstly, right click on the solution and click on add Reference. Secondly, Select the .NET Folder. And then double click on the Using.System.Drawing;

You can use this:

window.setInterval(yourfunction, 10000);

function yourfunction() { alert('test'); }

Try putting a space before each \;

Works:

find . -name "*.log" -exec echo {} \;

Doesn't Work:

find . -name "*.log" -exec echo {}\;

From API 19 onwards you can make use of the Telephony Class for that; Since hardcored values won't retrieve messages in every devices because the content provider Uri changes from devices and manufacturers.

public void getAllSms(Context context) {

    ContentResolver cr = context.getContentResolver();
    Cursor c = cr.query(Telephony.Sms.CONTENT_URI, null, null, null, null);
    int totalSMS = 0;
    if (c != null) {
        totalSMS = c.getCount();
        if (c.moveToFirst()) {
            for (int j = 0; j < totalSMS; j++) {
                String smsDate = c.getString(c.getColumnIndexOrThrow(Telephony.Sms.DATE));
                String number = c.getString(c.getColumnIndexOrThrow(Telephony.Sms.ADDRESS));
                String body = c.getString(c.getColumnIndexOrThrow(Telephony.Sms.BODY));
                Date dateFormat= new Date(Long.valueOf(smsDate));
                String type;
                switch (Integer.parseInt(c.getString(c.getColumnIndexOrThrow(Telephony.Sms.TYPE)))) {
                    case Telephony.Sms.MESSAGE_TYPE_INBOX:
                        type = "inbox";
                        break;
                    case Telephony.Sms.MESSAGE_TYPE_SENT:
                        type = "sent";
                        break;
                    case Telephony.Sms.MESSAGE_TYPE_OUTBOX:
                        type = "outbox";
                        break;
                    default:
                        break;
                }


                c.moveToNext();
            }
        }

        c.close();

    } else {
        Toast.makeText(this, "No message to show!", Toast.LENGTH_SHORT).show();
    }
}

At the time of writing in 2013, this was one way to do it. Composer has added support for better ways: See @igorw 's answer

DO YOU HAVE A REPOSITORY?

Git, Mercurial and SVN is supported by Composer.

DO YOU HAVE WRITE ACCESS TO THE REPOSITORY?

Yes?

DOES THE REPOSITORY HAVE A composer.json FILE

If you have a repository you can write to: Add a composer.json file, or fix the existing one, and DON'T use the solution below.

Go to @igorw 's answer

ONLY USE THIS IF YOU DON'T HAVE A REPOSITORY
OR IF THE REPOSITORY DOES NOT HAVE A composer.json AND YOU CANNOT ADD IT

This will override everything that Composer may be able to read from the original repository's composer.json, including the dependencies of the package and the autoloading.

Using the package type will transfer the burden of correctly defining everything onto you. The easier way is to have a composer.json file in the repository, and just use it.

This solution really only is for the rare cases where you have an abandoned ZIP download that you cannot alter, or a repository you can only read, but it isn't maintained anymore.

"repositories": [
    {
        "type":"package",
        "package": {
          "name": "l3pp4rd/doctrine-extensions",
          "version":"master",
          "source": {
              "url": "https://github.com/l3pp4rd/DoctrineExtensions.git",
              "type": "git",
              "reference":"master"
            }
        }
    }
],
"require": {
    "l3pp4rd/doctrine-extensions": "master"
}

I had enough success just catchig socket.timeout and socket.error; although socket.error can be raised for lots of reasons. Be careful.

import socket
import logging

hostname='google.com'
port=443

try:
    sock = socket.create_connection((hostname, port), timeout=3)

except socket.timeout as err:
    logging.error(err)

except socket.error as err:
    logging.error(err)

Since this is a matter of finding files, let's use find!

Using GNU find you can use the -regex option to find those files in the tree of directories whose extension is either .h or .cpp:

find -type f -regex ".*\.\(h\|cpp\)"
#            ^^^^^^^^^^^^^^^^^^^^^^^

Then, it is just a matter of executing grep on each of its results:

find -type f -regex ".*\.\(h\|cpp\)" -exec grep "your pattern" {} +

If you don't have this distribution of find you have to use an approach like Amir Afghani's, using -o to concatenate options (the name is either ending with .h or with .cpp):

find -type f \( -name '*.h' -o -name '*.cpp' \) -exec grep "your pattern" {} +
#            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

And if you really want to use grep, follow the syntax indicated to --include:

grep "your pattern" -r --include=*.{cpp,h}
#                      ^^^^^^^^^^^^^^^^^^^

You can have return in a void method, you just can't return any value (as in return 5;), that's why they call it a void method. Some people always explicitly end void methods with a return statement, but it's not mandatory. It can be used to leave a function early, though:

void someFunct(int arg)
{
    if (arg == 0)
    {
        //Leave because this is a bad value
        return;
    }
    //Otherwise, do something
}

For string:

+ (BOOL) checkStringIsNotEmpty:(NSString*)string {
if (string == nil || string.length == 0) return NO;
return YES;}

Absolutely.

If the constructor doesn't receive valid input, or can't construct the object in a valid manner, it has no other option but to throw an exception and alert its caller.

I used https://iconifier.net I uploaded my image, downloaded images zip file, added images to my server, followed the directions on the site including adding the links to my index.html and it worked. My favicon now shows on my iPhone in Safari when 'Add to home screen'

public int getAge(Date dateOfBirth) 
{
    Calendar now = Calendar.getInstance();
    Calendar dob = Calendar.getInstance();

    dob.setTime(dateOfBirth);

    if (dob.after(now)) 
    {
        throw new IllegalArgumentException("Can't be born in the future");
    }

    int age = now.get(Calendar.YEAR) - dob.get(Calendar.YEAR);

    if (now.get(Calendar.DAY_OF_YEAR) < dob.get(Calendar.DAY_OF_YEAR)) 
    {
        age--;
    }

    return age;
}

QUICK ANSWER (very simplified!)

json.load() takes a FILE

json.load() expects a file (file object) - e.g. a file you opened before given by filepath like 'files/example.json'.

json.loads() takes a STRING

json.loads() expects a (valid) JSON string - i.e. {"foo": "bar"}

EXAMPLES

Assuming you have a file example.json with this content: { "key_1": 1, "key_2": "foo", "Key_3": null }

>>> import json
>>> file = open("example.json")

>>> type(file)
<class '_io.TextIOWrapper'>

>>> file
<_io.TextIOWrapper name='example.json' mode='r' encoding='UTF-8'>

>>> json.load(file)
{'key_1': 1, 'key_2': 'foo', 'Key_3': None}

>>> json.loads(file)
Traceback (most recent call last):
  File "/usr/local/python/Versions/3.7/lib/python3.7/json/__init__.py", line 341, in loads
TypeError: the JSON object must be str, bytes or bytearray, not TextIOWrapper


>>> string = '{"foo": "bar"}'

>>> type(string)
<class 'str'>

>>> string
'{"foo": "bar"}'

>>> json.loads(string)
{'foo': 'bar'}

>>> json.load(string)
Traceback (most recent call last):
  File "/usr/local/python/Versions/3.7/lib/python3.7/json/__init__.py", line 293, in load
    return loads(fp.read(),
AttributeError: 'str' object has no attribute 'read'

I came across this question, and the answers here didn't work for me; i couldn't figure out why i can't login and got the above error.

It turns out that postgresql saves usernames lowercase, but during authentication it uses both upper- and lowercase.

CREATE USER myNewUser WITH PASSWORD 'passWord';

will create a user with the username 'mynewuser' and password 'passWord'.

This means you have to authenticate with 'mynewuser', and not with 'myNewUser'. For a newbie in pgsql like me, this was confusing. I hope it helps others who run into this problem.

In Windows, even after installing graphviz-2.38.msi, you can add your own path in pydot.py (found under site-package folder)

 if os.sys.platform == 'win32':

    # Try and work out the equivalent of "C:\Program Files" on this
    # machine (might be on drive D:, or in a different language)
    #

    if os.environ.has_key('PROGRAMFILES'):

        # Note, we could also use the win32api to get this
        # information, but win32api may not be installed.

        path = os.path.join(os.environ['PROGRAMFILES'], 'ATT', 'GraphViz', 'bin')

    else:

        #Just in case, try the default...
        path = r"C:\PYTHON27\GraphViz\bin"  # add here.

I have used Botan to perform this operation and others before. AraK has pointed out Crypto++. I guess both libraries are perfectly valid. Now it is up to you :-).

I think I might have been overthinking this. One way I've come up with that does the job, is simply to have a global variable, that accumulates the diagnostic data.

Somthing like this:

log1 = dict()
class TestBar(unittest.TestCase):
    def runTest(self):
        for t1, t2 in testdata:
            f = Foo(t1) 
            if f.bar(t2) != 2: 
                log1("TestBar.runTest") = (f, t1, t2)
                self.fail("f.bar(t2) != 2")

Thanks for the replies. They have given me some alternative ideas for how to record information from unit tests in python.

Alternatively, when you want to save individual R objects, I recommend using saveRDS.

You can save R objects using saveRDS, then load them into R with a new variable name using readRDS.

Example:

# Save the city object
saveRDS(city, "city.rds")

# ...

# Load the city object as city
city <- readRDS("city.rds")

# Or with a different name
city2 <- readRDS("city.rds")

But when you want to save many/all your objects in your workspace, use Manetheran's answer.

I guess Java SE (Standard Edition) is the one I should install on my Windows 7 desktop

Yes, of course. Java SE is the best one to start with. BTW you must learn Java basics. That means you must learn some of the libraries and APIs in Java SE.

Difference between Java Platform Editions:

Java Micro Edition (Java ME):

• Highly optimized runtime environment.
• Target consumer products (Pagers, cell phones).
• Java ME was formerly known as Java 2 Platform, Micro Edition or J2ME.

Java Standard Edition (Java SE):

Java tools, runtimes, and APIs for developers writing, deploying, and running applets and applications. Java SE was formerly known as Java 2 Platform, Standard Edition or J2SE. (everyone/beginners starting from this)

Java Enterprise Edition(Java EE):

Targets enterprise-class server-side applications. Java EE was formerly known as Java 2 Platform, Enterprise Edition or J2EE.

Another duplicated question for this question.

Lastly, about J.. confusion

JVM (Java Virtual Machine):

JVM is a part of both the JDK and JRE that translates Java byte codes and executes them as native code on the client machine.

JRE (Java Runtime Environment):

It is the environment provided for the java programs to get executed. It contains a JVM, class libraries, and other supporting files. It does not contain any development tools such as compiler, debugger and so on.

JDK (Java Development Kit):

JDK contains tools needed to develop the java programs (javac, java, javadoc, appletviewer, jdb, javap, rmic,...) and JRE to run the program.

Java SDK (Java Software Development Kit):

SDK comprises a JDK and extra software, such as application servers, debuggers, and documentation.

Java SE:

Java platform, Standard Edition (Java SE) lets you develop and deploy Java applications on desktops and servers (same as SDK).

J2SE, J2ME, J2EE

Any Java edition from 1.2 to 1.5

Read more about these topics:

• Differences between JDK and Java SDK
• Java JDK, SDK, SE?
• What is the difference between JVM, JDK, JRE & OpenJDK?

You are probably having a problem with the sort of CSV file that you have.

Open the CSV file with a text editor, check that all the separations are done with the comma, and not semicolon and try the script again. It should work fine.

I just knocked up a quick procedure to do this. It only works for a single row, so I create a temporary view that just selects the row I want, and then replace the pg_temp.temp_view with the actual table that I want to insert into.

CREATE OR REPLACE FUNCTION dv_util.gen_insert_statement(IN p_schema text, IN p_table text)
  RETURNS text AS
$BODY$
DECLARE
    selquery text; 
    valquery text; 
    selvalue text; 
    colvalue text; 
    colrec record;
BEGIN

    selquery := 'INSERT INTO ' ||  quote_ident(p_schema) || '.' || quote_ident(p_table);

    selquery := selquery || '(';

    valquery := ' VALUES (';
    FOR colrec IN SELECT table_schema, table_name, column_name, data_type
                  FROM information_schema.columns 
                  WHERE table_name = p_table and table_schema = p_schema 
                  ORDER BY ordinal_position 
    LOOP
      selquery := selquery || quote_ident(colrec.column_name) || ',';

      selvalue := 
        'SELECT CASE WHEN ' || quote_ident(colrec.column_name) || ' IS NULL' || 
                   ' THEN ''NULL''' || 
                   ' ELSE '''' || quote_literal('|| quote_ident(colrec.column_name) || ')::text || ''''' || 
                   ' END' || 
        ' FROM '||quote_ident(p_schema)||'.'||quote_ident(p_table);
      EXECUTE selvalue INTO colvalue;
      valquery := valquery || colvalue || ',';
    END LOOP;
    -- Replace the last , with a )
    selquery := substring(selquery,1,length(selquery)-1) || ')';
    valquery := substring(valquery,1,length(valquery)-1) || ')';

    selquery := selquery || valquery;

RETURN selquery;
END
$BODY$
  LANGUAGE plpgsql VOLATILE;

Invoked thus:

SELECT distinct dv_util.gen_insert_statement('pg_temp_' || sess_id::text,'my_data') 
from pg_stat_activity 
where procpid = pg_backend_pid()

I haven't tested this against injection attacks, please let me know if the quote_literal call isn't sufficient for that.

Also it only works for columns that can be simply cast to ::text and back again.

Also this is for Greenplum but I can't think of a reason why it wouldn't work on Postgres, CMIIW.

In the end I made a jQuery plugin that will format the <input type="number" /> appropriately for me. I also noticed on some mobile devices the min and max attributes don't actually prevent you from entering lower or higher numbers than specified, so the plugin will account for that too. Below is the code and an example:

(function($) {_x000D_
  $.fn.currencyInput = function() {_x000D_
    this.each(function() {_x000D_
      var wrapper = $("<div class='currency-input' />");_x000D_
      $(this).wrap(wrapper);_x000D_
      $(this).before("<span class='currency-symbol'>$</span>");_x000D_
      $(this).change(function() {_x000D_
        var min = parseFloat($(this).attr("min"));_x000D_
        var max = parseFloat($(this).attr("max"));_x000D_
        var value = this.valueAsNumber;_x000D_
        if(value < min)_x000D_
          value = min;_x000D_
        else if(value > max)_x000D_
          value = max;_x000D_
        $(this).val(value.toFixed(2)); _x000D_
      });_x000D_
    });_x000D_
  };_x000D_
})(jQuery);_x000D_
_x000D_
$(document).ready(function() {_x000D_
  $('input.currency').currencyInput();_x000D_
});

.currency {_x000D_
  padding-left:12px;_x000D_
}_x000D_
_x000D_
.currency-symbol {_x000D_
  position:absolute;_x000D_
  padding: 2px 5px;_x000D_
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>_x000D_
<input type="number" class="currency" min="0.01" max="2500.00" value="25.00" />

In PHP use the function htmlspecialchars() to escape < and >.

htmlspecialchars('<strong>something</strong>')

@"string here
that is long you mean"

But be careful, because

@"string here
           and space before this text
     means the space is also a part of the string"

It also escapes things in the string

@"c:\\folder" // c:\\folder
@"c:\folder" // c:\folder
"c:\\folder" // c:\folder

Related

• What does the @ symbol before a variable name mean in C#?
• MSDN string reference

With a for loop and a condition:

def cleaner(seq, value):    
    temp = []                      
    for number in seq:
        if number != value:
            temp.append(number)
    return temp

And if you want to remove some, but not all:

def cleaner(seq, value, occ):
    temp = []
    for number in seq:
        if number == value and occ:
            occ -= 1
            continue
        else:
            temp.append(number)
    return temp

1. replace all single quotes with double quotes
2. replace 'u"' from your strings to '"' ... so basically convert internal unicodes to strings before loading the string into json

>> strs = "{u'key':u'val'}"
>> strs = strs.replace("'",'"')
>> json.loads(strs.replace('u"','"'))

A more succinct VB.Net version, if anyone is interested

Dim filePaths As Linq.IOrderedEnumerable(Of IO.FileInfo) = _
  New DirectoryInfo("c:\temp").GetFiles() _
   .OrderBy(Function(f As FileInfo) f.CreationTime)
For Each fi As IO.FileInfo In filePaths
  ' Do whatever you wish here
Next

Let's start with a simple example. Let's say you have an email list, that is going to send out the following RFC2822 content.

From: <[email protected]>
To: <[email protected]>
Subject: Super simple email
Reply-To: <[email protected]>

This is a very simple body.

Now, let's say you are going to send it from a mailing list, that implements VERP (or some other bounce tracking mechanism that uses a different return-path). Lets say it will have a return-path of [email protected]. The SMTP session might look like:

{S}220 workstation1 Microsoft ESMTP MAIL Service
{C}HELO workstation1
{S}250 workstation1 Hello [127.0.0.1]
{C}MAIL FROM:<[email protected]>
{S}250 2.1.0 [email protected] OK
{C}RCPT TO:<[email protected]>
{S}250 2.1.5 [email protected] 
{C}DATA
{S}354 Start mail input; end with <CRLF>.<CRLF>
{C}From: <[email protected]>
To: <[email protected]>
Subject: Super simple email
Reply-To: <[email protected]>

This is a very simple body.
.

{S}250 Queued mail for delivery
{C}QUIT
{S}221 Service closing transmission channel

Where {C} and {S} represent Client and Server commands, respectively.

The recipient's mail would look like:

Return-Path: [email protected]
From: <[email protected]>
To: <[email protected]>
Subject: Super simple email
Reply-To: <[email protected]>

This is a very simple body.

Now, let's describe the different "FROM"s.

1. The return path (sometimes called the reverse path, envelope sender, or envelope from — all of these terms can be used interchangeably) is the value used in the SMTP session in the MAIL FROM command. As you can see, this does not need to be the same value that is found in the message headers. Only the recipient's mail server is supposed to add a Return-Path header to the top of the email. This records the actual Return-Path sender during the SMTP session. If a Return-Path header already exists in the message, then that header is removed and replaced by the recipient's mail server.

All bounces that occur during the SMTP session should go back to the Return-Path address. Some servers may accept all email, and then queue it locally, until it has a free thread to deliver it to the recipient's mailbox. If the recipient doesn't exist, it should bounce it back to the recorded Return-Path value.

Note, not all mail servers obey this rule; Some mail servers will bounce it back to the FROM address.

2. The FROM address is the value found in the FROM header. This is supposed to be who the message is FROM. This is what you see as the "FROM" in most mail clients. If an email does not have a Reply-To header, then all human (mail client) replies should go back to the FROM address.

3. The Reply-To header is added by the sender (or the sender's software). It is where all human replies should be addressed too. Basically, when the user clicks "reply", the Reply-To value should be the value used as the recipient of the newly composed email. The Reply-To value should not be used by any server. It is meant for client-side (MUA) use only.

However, as you can tell, not all mail servers obey the RFC standards or recommendations.

Hopefully this should help clear things up. However, if I missed anything, let me know, and I'll try to answer.

All solutions here doesn't really bind the model to the input because you will have to change back the dateAsString to be saved as date in your object (in the controller after the form will be submitted).

If you don't need the binding effect, but just to show it in the input,

a simple could be:

<input type="date" value="{{ item.date | date: 'yyyy-MM-dd' }}" id="item_date" />

Then, if you like, in the controller, you can save the edited date in this way:

  $scope.item.date = new Date(document.getElementById('item_date').value).getTime();

be aware: in your controller, you have to declare your item variable as $scope.item in order for this to work.

Not sure if this is what you're referring to, but this is the list of HTML entities you can use:

List of XML and HTML character entity references

Using the content within the 'Name' column you can just wrap these in an & and ;

E.g.  ,  , etc.

You may try this :

string s = "";

foreach(DataRowView drv in checkedListBox1.CheckedItems)
{
    s += drv[0].ToString()+",";
}
s=s.TrimEnd(',');

jmespath works really quite easy and well, http://jmespath.org/ It is being used by Amazon in the AWS command line interface, so it´s got to be quite stable.

in Windows, you can use the runas command. For linux users, there are some alternatives for sudo in windows, you can check this out

http://helpdeskgeek.com/free-tools-review/5-windows-alternatives-linux-sudo-command/

<textarea id="editor1" name="editor1">This is sample text</textarea>

<div id="trackingDiv" ></div>

<script type="text/javascript">
    CKEDITOR.replace( 'editor1' );

</script>

Let try this..

Update :

To set data :

Create instance First::

var editor = CKEDITOR.instances['editor1'];

Then,

editor.setData('your data');

or

editor.insertHtml('your html data');

or

editor.insertText('your text data');  

And Retrieve data from your editor::

editor.getData();

If change the particular para HTML data in CKEditor.

var html = $(editor.editable.$);
$('#id_of_para',html).html('your html data');

These are the possible ways that I know in CKEditor

if you are using maven:

mvn eclipse:eclipse -DdownloadSources=true  -DdownloadJavadocs=true

In some cases we could have a couple of tables, and then we need to detect click just for particular table. My solution is this:

<table id="elitable" border="1" cellspacing="0" width="100%">
  <tr>
 <td>100</td><td>AAA</td><td>aaa</td>
  </tr>
  <tr>
<td>200</td><td>BBB</td><td>bbb</td>
   </tr>
   <tr>
<td>300</td><td>CCC</td><td>ccc</td>
  </tr>
</table>


    <script>
    $(function(){
        $("#elitable tr").click(function(){
        alert (this.rowIndex);
        });
    });
    </script>

DEMO

I have a similar problem, I want to lock only 1 row. As far as I know, with UPDLOCK option, SQLSERVER locks all the rows that it needs to read in order to get the row. So, if you don't define a index to direct access to the row, all the preceded rows will be locked. In your example:

Asume that you have a table named TBL with an id field. You want to lock the row with id=10. You need to define a index for the field id (or any other fields that are involved in you select):

CREATE INDEX TBLINDEX ON TBL ( id )

And then, your query to lock ONLY the rows that you read is:

SELECT * FROM TBL WITH (UPDLOCK, INDEX(TBLINDEX)) WHERE id=10.

If you don't use the INDEX(TBLINDEX) option, SQLSERVER needs to read all rows from the beginning of the table to find your row with id=10, so those rows will be locked.

You can combine both in the same date function call

date("d-m-Y H:i:s");  

Change CI index.php file to:

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

if (defined('ENVIRONMENT')){
    switch (ENVIRONMENT){
        case 'development':
            error_reporting(E_ALL);
        break;

        case 'testing':
        case 'production':
            error_reporting(0);
        break;

        default:
            exit('The application environment is not set correctly.');
    }
}

IF PHP errors are off, but any MySQL errors are still going to show, turn these off in the /config/database.php file. Set the db_debug option to false:

$db['default']['db_debug'] = FALSE; 

Also, you can use active_group as development and production to match the environment https://www.codeigniter.com/user_guide/database/configuration.html

$active_group = 'development';


$db['development']['hostname'] = 'localhost';
$db['development']['username'] = '---';
$db['development']['password'] = '---';
$db['development']['database'] = '---';
$db['development']['dbdriver'] = 'mysql';
$db['development']['dbprefix'] = '';
$db['development']['pconnect'] = TRUE;

$db['development']['db_debug'] = TRUE;

$db['development']['cache_on'] = FALSE;
$db['development']['cachedir'] = '';
$db['development']['char_set'] = 'utf8';
$db['development']['dbcollat'] = 'utf8_general_ci';
$db['development']['swap_pre'] = '';
$db['development']['autoinit'] = TRUE;
$db['development']['stricton'] = FALSE;



$db['production']['hostname'] = 'localhost';
$db['production']['username'] = '---';
$db['production']['password'] = '---';
$db['production']['database'] = '---';
$db['production']['dbdriver'] = 'mysql';
$db['production']['dbprefix'] = '';
$db['production']['pconnect'] = TRUE;

$db['production']['db_debug'] = FALSE;

$db['production']['cache_on'] = FALSE;
$db['production']['cachedir'] = '';
$db['production']['char_set'] = 'utf8';
$db['production']['dbcollat'] = 'utf8_general_ci';
$db['production']['swap_pre'] = '';
$db['production']['autoinit'] = TRUE;
$db['production']['stricton'] = FALSE;

When it comes to a range of commits, cherry-picking is was not practical.

As mentioned below by Keith Kim, Git 1.7.2+ introduced the ability to cherry-pick a range of commits (but you still need to be aware of the consequence of cherry-picking for future merge)

git cherry-pick" learned to pick a range of commits
(e.g. "cherry-pick A..B" and "cherry-pick --stdin"), so did "git revert"; these do not support the nicer sequencing control "rebase [-i]" has, though.

damian comments and warns us:

In the "cherry-pick A..B" form, A should be older than B.
If they're the wrong order the command will silently fail.

If you want to pick the range B through D (including B) that would be B^..D (instead of B..D).
See "Git create branch from range of previous commits?" as an illustration.

As Jubobs mentions in the comments:

This assumes that B is not a root commit; you'll get an "unknown revision" error otherwise.

Note: as of Git 2.9.x/2.10 (Q3 2016), you can cherry-pick a range of commit directly on an orphan branch (empty head): see "How to make existing branch an orphan in git".

Original answer (January 2010)

A rebase --onto would be better, where you replay the given range of commit on top of your integration branch, as Charles Bailey described here.
(also, look for "Here is how you would transplant a topic branch based on one branch to another" in the git rebase man page, to see a practical example of git rebase --onto)

If your current branch is integration:

# Checkout a new temporary branch at the current location
git checkout -b tmp

# Move the integration branch to the head of the new patchset
git branch -f integration last_SHA-1_of_working_branch_range

# Rebase the patchset onto tmp, the old location of integration
git rebase --onto tmp first_SHA-1_of_working_branch_range~1 integration

That will replay everything between:

• after the parent of first_SHA-1_of_working_branch_range (hence the ~1): the first commit you want to replay
• up to "integration" (which points to the last commit you want to replay, from the working branch)

to "tmp" (which points to where integration was pointing before)

If there is any conflict when one of those commits is replayed:

• either solve it and run "git rebase --continue".
• or skip this patch, and instead run "git rebase --skip"
• or cancel the all thing with a "git rebase --abort" (and put back the integration branch on the tmp branch)

After that rebase --onto, integration will be back at the last commit of the integration branch (that is "tmp" branch + all the replayed commits)

With cherry-picking or rebase --onto, do not forget it has consequences on subsequent merges, as described here.

A pure "cherry-pick" solution is discussed here, and would involve something like:

If you want to use a patch approach then "git format-patch|git am" and "git cherry" are your options.
Currently, git cherry-pick accepts only a single commit, but if you want to pick the range B through D that would be B^..D in git lingo, so

git rev-list --reverse --topo-order B^..D | while read rev 
do 
  git cherry-pick $rev || break 
done 

But anyway, when you need to "replay" a range of commits, the word "replay" should push you to use the "rebase" feature of Git.

HTML

<input type="text" value="CLICK TO SHOW CONTENT">
<div id="content">
and the content will show.
</div>

CSS

#content {
  display: none;
}
input[type="text"]{
    color: transparent;
    text-shadow: 0 0 0 #000;
    padding: 6px 12px;
    width: 150px;
    cursor: pointer;
}
input[type="text"]:focus{
    outline: none;
}
input:focus + div#content {
  display: block;
}

<input type="text" value="CLICK TO SHOW CONTENT">
<div id="content">
and the content will show.
</div>

tl;dr

Call the is_path_exists_or_creatable() function defined below.

Strictly Python 3. That's just how we roll.

A Tale of Two Questions

The question of "How do I test pathname validity and, for valid pathnames, the existence or writability of those paths?" is clearly two separate questions. Both are interesting, and neither have received a genuinely satisfactory answer here... or, well, anywhere that I could grep.

vikki's answer probably hews the closest, but has the remarkable disadvantages of:

• Needlessly opening (...and then failing to reliably close) file handles.
• Needlessly writing (...and then failing to reliable close or delete) 0-byte files.
• Ignoring OS-specific errors differentiating between non-ignorable invalid pathnames and ignorable filesystem issues. Unsurprisingly, this is critical under Windows. (See below.)
• Ignoring race conditions resulting from external processes concurrently (re)moving parent directories of the pathname to be tested. (See below.)
• Ignoring connection timeouts resulting from this pathname residing on stale, slow, or otherwise temporarily inaccessible filesystems. This could expose public-facing services to potential DoS-driven attacks. (See below.)

We're gonna fix all that.

Question #0: What's Pathname Validity Again?

Before hurling our fragile meat suits into the python-riddled moshpits of pain, we should probably define what we mean by "pathname validity." What defines validity, exactly?

By "pathname validity," we mean the syntactic correctness of a pathname with respect to the root filesystem of the current system – regardless of whether that path or parent directories thereof physically exist. A pathname is syntactically correct under this definition if it complies with all syntactic requirements of the root filesystem.

By "root filesystem," we mean:

• On POSIX-compatible systems, the filesystem mounted to the root directory (/).
• On Windows, the filesystem mounted to %HOMEDRIVE%, the colon-suffixed drive letter containing the current Windows installation (typically but not necessarily C:).

The meaning of "syntactic correctness," in turn, depends on the type of root filesystem. For ext4 (and most but not all POSIX-compatible) filesystems, a pathname is syntactically correct if and only if that pathname:

• Contains no null bytes (i.e., \x00 in Python). This is a hard requirement for all POSIX-compatible filesystems.
• Contains no path components longer than 255 bytes (e.g., 'a'*256 in Python). A path component is a longest substring of a pathname containing no / character (e.g., bergtatt, ind, i, and fjeldkamrene in the pathname /bergtatt/ind/i/fjeldkamrene).

Syntactic correctness. Root filesystem. That's it.

Question #1: How Now Shall We Do Pathname Validity?

Validating pathnames in Python is surprisingly non-intuitive. I'm in firm agreement with Fake Name here: the official os.path package should provide an out-of-the-box solution for this. For unknown (and probably uncompelling) reasons, it doesn't. Fortunately, unrolling your own ad-hoc solution isn't that gut-wrenching...

O.K., it actually is. It's hairy; it's nasty; it probably chortles as it burbles and giggles as it glows. But what you gonna do? Nuthin'.

We'll soon descend into the radioactive abyss of low-level code. But first, let's talk high-level shop. The standard os.stat() and os.lstat() functions raise the following exceptions when passed invalid pathnames:

• For pathnames residing in non-existing directories, instances of FileNotFoundError.
• For pathnames residing in existing directories:
  • Under Windows, instances of WindowsError whose winerror attribute is 123 (i.e., ERROR_INVALID_NAME).
  • Under all other OSes:
  • For pathnames containing null bytes (i.e., '\x00'), instances of TypeError.
  • For pathnames containing path components longer than 255 bytes, instances of OSError whose errcode attribute is:
    • Under SunOS and the *BSD family of OSes, errno.ERANGE. (This appears to be an OS-level bug, otherwise referred to as "selective interpretation" of the POSIX standard.)
    • Under all other OSes, errno.ENAMETOOLONG.

Crucially, this implies that only pathnames residing in existing directories are validatable. The os.stat() and os.lstat() functions raise generic FileNotFoundError exceptions when passed pathnames residing in non-existing directories, regardless of whether those pathnames are invalid or not. Directory existence takes precedence over pathname invalidity.

Does this mean that pathnames residing in non-existing directories are not validatable? Yes – unless we modify those pathnames to reside in existing directories. Is that even safely feasible, however? Shouldn't modifying a pathname prevent us from validating the original pathname?

To answer this question, recall from above that syntactically correct pathnames on the ext4 filesystem contain no path components (A) containing null bytes or (B) over 255 bytes in length. Hence, an ext4 pathname is valid if and only if all path components in that pathname are valid. This is true of most real-world filesystems of interest.

Does that pedantic insight actually help us? Yes. It reduces the larger problem of validating the full pathname in one fell swoop to the smaller problem of only validating all path components in that pathname. Any arbitrary pathname is validatable (regardless of whether that pathname resides in an existing directory or not) in a cross-platform manner by following the following algorithm:

1. Split that pathname into path components (e.g., the pathname /troldskog/faren/vild into the list ['', 'troldskog', 'faren', 'vild']).
2. For each such component:
   1. Join the pathname of a directory guaranteed to exist with that component into a new temporary pathname (e.g., /troldskog) .
   2. Pass that pathname to os.stat() or os.lstat(). If that pathname and hence that component is invalid, this call is guaranteed to raise an exception exposing the type of invalidity rather than a generic FileNotFoundError exception. Why? Because that pathname resides in an existing directory. (Circular logic is circular.)

Is there a directory guaranteed to exist? Yes, but typically only one: the topmost directory of the root filesystem (as defined above).

Passing pathnames residing in any other directory (and hence not guaranteed to exist) to os.stat() or os.lstat() invites race conditions, even if that directory was previously tested to exist. Why? Because external processes cannot be prevented from concurrently removing that directory after that test has been performed but before that pathname is passed to os.stat() or os.lstat(). Unleash the dogs of mind-fellating insanity!

There exists a substantial side benefit to the above approach as well: security. (Isn't that nice?) Specifically:

Front-facing applications validating arbitrary pathnames from untrusted sources by simply passing such pathnames to os.stat() or os.lstat() are susceptible to Denial of Service (DoS) attacks and other black-hat shenanigans. Malicious users may attempt to repeatedly validate pathnames residing on filesystems known to be stale or otherwise slow (e.g., NFS Samba shares); in that case, blindly statting incoming pathnames is liable to either eventually fail with connection timeouts or consume more time and resources than your feeble capacity to withstand unemployment.

The above approach obviates this by only validating the path components of a pathname against the root directory of the root filesystem. (If even that's stale, slow, or inaccessible, you've got larger problems than pathname validation.)

Lost? Great. Let's begin. (Python 3 assumed. See "What Is Fragile Hope for 300, leycec?")

import errno, os

# Sadly, Python fails to provide the following magic number for us.
ERROR_INVALID_NAME = 123
'''
Windows-specific error code indicating an invalid pathname.

See Also
----------
https://docs.microsoft.com/en-us/windows/win32/debug/system-error-codes--0-499-
    Official listing of all such codes.
'''

def is_pathname_valid(pathname: str) -> bool:
    '''
    `True` if the passed pathname is a valid pathname for the current OS;
    `False` otherwise.
    '''
    # If this pathname is either not a string or is but is empty, this pathname
    # is invalid.
    try:
        if not isinstance(pathname, str) or not pathname:
            return False

        # Strip this pathname's Windows-specific drive specifier (e.g., `C:\`)
        # if any. Since Windows prohibits path components from containing `:`
        # characters, failing to strip this `:`-suffixed prefix would
        # erroneously invalidate all valid absolute Windows pathnames.
        _, pathname = os.path.splitdrive(pathname)

        # Directory guaranteed to exist. If the current OS is Windows, this is
        # the drive to which Windows was installed (e.g., the "%HOMEDRIVE%"
        # environment variable); else, the typical root directory.
        root_dirname = os.environ.get('HOMEDRIVE', 'C:') \
            if sys.platform == 'win32' else os.path.sep
        assert os.path.isdir(root_dirname)   # ...Murphy and her ironclad Law

        # Append a path separator to this directory if needed.
        root_dirname = root_dirname.rstrip(os.path.sep) + os.path.sep

        # Test whether each path component split from this pathname is valid or
        # not, ignoring non-existent and non-readable path components.
        for pathname_part in pathname.split(os.path.sep):
            try:
                os.lstat(root_dirname + pathname_part)
            # If an OS-specific exception is raised, its error code
            # indicates whether this pathname is valid or not. Unless this
            # is the case, this exception implies an ignorable kernel or
            # filesystem complaint (e.g., path not found or inaccessible).
            #
            # Only the following exceptions indicate invalid pathnames:
            #
            # * Instances of the Windows-specific "WindowsError" class
            #   defining the "winerror" attribute whose value is
            #   "ERROR_INVALID_NAME". Under Windows, "winerror" is more
            #   fine-grained and hence useful than the generic "errno"
            #   attribute. When a too-long pathname is passed, for example,
            #   "errno" is "ENOENT" (i.e., no such file or directory) rather
            #   than "ENAMETOOLONG" (i.e., file name too long).
            # * Instances of the cross-platform "OSError" class defining the
            #   generic "errno" attribute whose value is either:
            #   * Under most POSIX-compatible OSes, "ENAMETOOLONG".
            #   * Under some edge-case OSes (e.g., SunOS, *BSD), "ERANGE".
            except OSError as exc:
                if hasattr(exc, 'winerror'):
                    if exc.winerror == ERROR_INVALID_NAME:
                        return False
                elif exc.errno in {errno.ENAMETOOLONG, errno.ERANGE}:
                    return False
    # If a "TypeError" exception was raised, it almost certainly has the
    # error message "embedded NUL character" indicating an invalid pathname.
    except TypeError as exc:
        return False
    # If no exception was raised, all path components and hence this
    # pathname itself are valid. (Praise be to the curmudgeonly python.)
    else:
        return True
    # If any other exception was raised, this is an unrelated fatal issue
    # (e.g., a bug). Permit this exception to unwind the call stack.
    #
    # Did we mention this should be shipped with Python already?

Done. Don't squint at that code. (It bites.)

Question #2: Possibly Invalid Pathname Existence or Creatability, Eh?

Testing the existence or creatability of possibly invalid pathnames is, given the above solution, mostly trivial. The little key here is to call the previously defined function before testing the passed path:

def is_path_creatable(pathname: str) -> bool:
    '''
    `True` if the current user has sufficient permissions to create the passed
    pathname; `False` otherwise.
    '''
    # Parent directory of the passed path. If empty, we substitute the current
    # working directory (CWD) instead.
    dirname = os.path.dirname(pathname) or os.getcwd()
    return os.access(dirname, os.W_OK)

def is_path_exists_or_creatable(pathname: str) -> bool:
    '''
    `True` if the passed pathname is a valid pathname for the current OS _and_
    either currently exists or is hypothetically creatable; `False` otherwise.

    This function is guaranteed to _never_ raise exceptions.
    '''
    try:
        # To prevent "os" module calls from raising undesirable exceptions on
        # invalid pathnames, is_pathname_valid() is explicitly called first.
        return is_pathname_valid(pathname) and (
            os.path.exists(pathname) or is_path_creatable(pathname))
    # Report failure on non-fatal filesystem complaints (e.g., connection
    # timeouts, permissions issues) implying this path to be inaccessible. All
    # other exceptions are unrelated fatal issues and should not be caught here.
    except OSError:
        return False

Done and done. Except not quite.

Question #3: Possibly Invalid Pathname Existence or Writability on Windows

There exists a caveat. Of course there does.

As the official os.access() documentation admits:

Note: I/O operations may fail even when os.access() indicates that they would succeed, particularly for operations on network filesystems which may have permissions semantics beyond the usual POSIX permission-bit model.

To no one's surprise, Windows is the usual suspect here. Thanks to extensive use of Access Control Lists (ACL) on NTFS filesystems, the simplistic POSIX permission-bit model maps poorly to the underlying Windows reality. While this (arguably) isn't Python's fault, it might nonetheless be of concern for Windows-compatible applications.

If this is you, a more robust alternative is wanted. If the passed path does not exist, we instead attempt to create a temporary file guaranteed to be immediately deleted in the parent directory of that path – a more portable (if expensive) test of creatability:

import os, tempfile

def is_path_sibling_creatable(pathname: str) -> bool:
    '''
    `True` if the current user has sufficient permissions to create **siblings**
    (i.e., arbitrary files in the parent directory) of the passed pathname;
    `False` otherwise.
    '''
    # Parent directory of the passed path. If empty, we substitute the current
    # working directory (CWD) instead.
    dirname = os.path.dirname(pathname) or os.getcwd()

    try:
        # For safety, explicitly close and hence delete this temporary file
        # immediately after creating it in the passed path's parent directory.
        with tempfile.TemporaryFile(dir=dirname): pass
        return True
    # While the exact type of exception raised by the above function depends on
    # the current version of the Python interpreter, all such types subclass the
    # following exception superclass.
    except EnvironmentError:
        return False

def is_path_exists_or_creatable_portable(pathname: str) -> bool:
    '''
    `True` if the passed pathname is a valid pathname on the current OS _and_
    either currently exists or is hypothetically creatable in a cross-platform
    manner optimized for POSIX-unfriendly filesystems; `False` otherwise.

    This function is guaranteed to _never_ raise exceptions.
    '''
    try:
        # To prevent "os" module calls from raising undesirable exceptions on
        # invalid pathnames, is_pathname_valid() is explicitly called first.
        return is_pathname_valid(pathname) and (
            os.path.exists(pathname) or is_path_sibling_creatable(pathname))
    # Report failure on non-fatal filesystem complaints (e.g., connection
    # timeouts, permissions issues) implying this path to be inaccessible. All
    # other exceptions are unrelated fatal issues and should not be caught here.
    except OSError:
        return False

Note, however, that even this may not be enough.

Thanks to User Access Control (UAC), the ever-inimicable Windows Vista and all subsequent iterations thereof blatantly lie about permissions pertaining to system directories. When non-Administrator users attempt to create files in either the canonical C:\Windows or C:\Windows\system32 directories, UAC superficially permits the user to do so while actually isolating all created files into a "Virtual Store" in that user's profile. (Who could have possibly imagined that deceiving users would have harmful long-term consequences?)

This is crazy. This is Windows.

Prove It

Dare we? It's time to test-drive the above tests.

Since NULL is the only character prohibited in pathnames on UNIX-oriented filesystems, let's leverage that to demonstrate the cold, hard truth – ignoring non-ignorable Windows shenanigans, which frankly bore and anger me in equal measure:

>>> print('"foo.bar" valid? ' + str(is_pathname_valid('foo.bar')))
"foo.bar" valid? True
>>> print('Null byte valid? ' + str(is_pathname_valid('\x00')))
Null byte valid? False
>>> print('Long path valid? ' + str(is_pathname_valid('a' * 256)))
Long path valid? False
>>> print('"/dev" exists or creatable? ' + str(is_path_exists_or_creatable('/dev')))
"/dev" exists or creatable? True
>>> print('"/dev/foo.bar" exists or creatable? ' + str(is_path_exists_or_creatable('/dev/foo.bar')))
"/dev/foo.bar" exists or creatable? False
>>> print('Null byte exists or creatable? ' + str(is_path_exists_or_creatable('\x00')))
Null byte exists or creatable? False

Beyond sanity. Beyond pain. You will find Python portability concerns.

There's a good topic about this in Stack Overflow question Is 'yield return' slower than "old school" return?.

It says:

ReadAllLines loads all of the lines into memory and returns a string[]. All well and good if the file is small. If the file is larger than will fit in memory, you'll run out of memory.

ReadLines, on the other hand, uses yield return to return one line at a time. With it, you can read any size file. It doesn't load the whole file into memory.

Say you wanted to find the first line that contains the word "foo", and then exit. Using ReadAllLines, you'd have to read the entire file into memory, even if "foo" occurs on the first line. With ReadLines, you only read one line. Which one would be faster?

I assume the question is already answered. If above solution doesn't help in solving the issue then can use below to solve the issue.

The issue occurs if sometimes your maven user settings is not reflecting correct settings.xml file.

To update the settings file go to Windows > Preferences > Maven > User Settings and update the settings.xml to it correct location.

Once this is doen re-build the project, these should solve the issue. Thanks.

If you are using qmake, the standard Qt build system, just add a line to the .pro file as documented in the qmake Variable Reference:

INCLUDEPATH += <your path>

If you are using your own build system, you create a project by selecting "Import of Makefile-based project". This will create some files in your project directory including a file named <your project name>.includes. In that file, simply list the paths you want to include, one per line. Really all this does is tell Qt Creator where to look for files to index for auto completion. Your own build system will have to handle the include paths in its own way.

As explained in the Qt Creator Manual, <your path> must be an absolute path, but you can avoid OS-, host- or user-specific entries in your .pro file by using $$PWD which refers to the folder that contains your .pro file, e.g.

INCLUDEPATH += $$PWD/code/include

Don't forget that you can not cross domains because of security.

So if this is the case, you should use JSON.

When is lexing enough, when do you need EBNF?

EBNF really doesn't add much to the power of grammars. It's just a convenience / shortcut notation / "syntactic sugar" over the standard Chomsky's Normal Form (CNF) grammar rules. For example, the EBNF alternative:

S --> A | B

you can achieve in CNF by just listing each alternative production separately:

S --> A      // `S` can be `A`,
S --> B      // or it can be `B`.

The optional element from EBNF:

S --> X?

you can achieve in CNF by using a nullable production, that is, the one which can be replaced by an empty string (denoted by just empty production here; others use epsilon or lambda or crossed circle):

S --> B       // `S` can be `B`,
B --> X       // and `B` can be just `X`,
B -->         // or it can be empty.

A production in a form like the last one B above is called "erasure", because it can erase whatever it stands for in other productions (product an empty string instead of something else).

Zero-or-more repetiton from EBNF:

S --> A*

you can obtan by using recursive production, that is, one which embeds itself somewhere in it. It can be done in two ways. First one is left recursion (which usually should be avoided, because Top-Down Recursive Descent parsers cannot parse it):

S --> S A    // `S` is just itself ended with `A` (which can be done many times),
S -->        // or it can begin with empty-string, which stops the recursion.

Knowing that it generates just an empty string (ultimately) followed by zero or more As, the same string (but not the same language!) can be expressed using right-recursion:

S --> A S    // `S` can be `A` followed by itself (which can be done many times),
S -->        // or it can be just empty-string end, which stops the recursion.

And when it comes to + for one-or-more repetition from EBNF:

S --> A+

it can be done by factoring out one A and using * as before:

S --> A A*

which you can express in CNF as such (I use right recursion here; try to figure out the other one yourself as an exercise):

S --> A S   // `S` can be one `A` followed by `S` (which stands for more `A`s),
S --> A     // or it could be just one single `A`.

Knowing that, you can now probably recognize a grammar for a regular expression (that is, regular grammar) as one which can be expressed in a single EBNF production consisting only from terminal symbols. More generally, you can recognize regular grammars when you see productions similar to these:

A -->        // Empty (nullable) production (AKA erasure).
B --> x      // Single terminal symbol.
C --> y D    // Simple state change from `C` to `D` when seeing input `y`.
E --> F z    // Simple state change from `E` to `F` when seeing input `z`.
G --> G u    // Left recursion.
H --> v H    // Right recursion.

That is, using only empty strings, terminal symbols, simple non-terminals for substitutions and state changes, and using recursion only to achieve repetition (iteration, which is just linear recursion - the one which doesn't branch tree-like). Nothing more advanced above these, then you're sure it's a regular syntax and you can go with just lexer for that.

But when your syntax uses recursion in a non-trivial way, to produce tree-like, self-similar, nested structures, like the following one:

S --> a S b    // `S` can be itself "parenthesized" by `a` and `b` on both sides.
S -->          // or it could be (ultimately) empty, which ends recursion.

then you can easily see that this cannot be done with regular expression, because you cannot resolve it into one single EBNF production in any way; you'll end up with substituting for S indefinitely, which will always add another as and bs on both sides. Lexers (more specifically: Finite State Automata used by lexers) cannot count to arbitrary number (they are finite, remember?), so they don't know how many as were there to match them evenly with so many bs. Grammars like this are called context-free grammars (at the very least), and they require a parser.

Context-free grammars are well-known to parse, so they are widely used for describing programming languages' syntax. But there's more. Sometimes a more general grammar is needed -- when you have more things to count at the same time, independently. For example, when you want to describe a language where one can use round parentheses and square braces interleaved, but they have to be paired up correctly with each other (braces with braces, round with round). This kind of grammar is called context-sensitive. You can recognize it by that it has more than one symbol on the left (before the arrow). For example:

A R B --> A S B

You can think of these additional symbols on the left as a "context" for applying the rule. There could be some preconditions, postconditions etc. For example, the above rule will substitute R into S, but only when it's in between A and B, leaving those A and B themselves unchanged. This kind of syntax is really hard to parse, because it needs a full-blown Turing machine. It's a whole another story, so I'll end here.

On my mac osx yosemite 10.10. This command worked:

sudo launchctl load -w /Library/LaunchDaemons/com.mysql.mysql.plist
sudo launchctl unload -w /Library/LaunchDaemons/com.mysql.mysql.plist

You can find your mysql file in folder /Library/LaunchDaemons/ to run

In my case, I just added this class and use @EnableAutConfiguration:

@Component
public class SimpleCORSFilter extends GenericFilterBean {
    /**
     * The Logger for this class.
     */
    private final Logger logger = LoggerFactory.getLogger(this.getClass());

    @Override
    public void doFilter(ServletRequest req, ServletResponse resp,
                         FilterChain chain) throws IOException, ServletException {
        logger.info("> doFilter");

        HttpServletResponse response = (HttpServletResponse) resp;
        response.setHeader("Access-Control-Allow-Origin", "*");
        response.setHeader("Access-Control-Allow-Methods", "POST, PUT, GET, OPTIONS, DELETE");
        response.setHeader("Access-Control-Max-Age", "3600");
        response.setHeader("Access-Control-Allow-Headers", "Authorization, Content-Type");
        //response.setHeader("Access-Control-Allow-Credentials", "true");
        chain.doFilter(req, resp);

        logger.info("< doFilter");
    }
}

You can also define the DateTime format for a specific CultureInfo

public static bool IsDateTime(string tempDate)
{
    DateTime fromDateValue;
    var formats = new[] { "MM/dd/yyyy", "dd/MM/yyyy h:mm:ss", "MM/dd/yyyy hh:mm tt", "yyyy'-'MM'-'dd'T'HH':'mm':'ss" };
    return DateTime.TryParseExact(tempDate, formats, System.Globalization.CultureInfo.InvariantCulture, System.Globalization.DateTimeStyles.None, out fromDateValue);
}

$dbc is returning false. Your query has an error in it:

SELECT users.*, profile.* --You do not join with profile anywhere.
                                 FROM users 
                                 INNER JOIN contact_info 
                                 ON contact_info.user_id = users.user_id 
                                 WHERE users.user_id=3");

The fix for this in general has been described by Raveren.

In EF Core you no longer can execute "free" raw sql. You are required to define a POCO class and a DbSet for that class. In your case you will need to define Rank:

var ranks = DbContext.Ranks
   .FromSql("SQL_SCRIPT OR STORED_PROCEDURE @p0,@p1,...etc", parameters)
   .AsNoTracking().ToList();

As it will be surely readonly it will be useful to include the .AsNoTracking() call.

EDIT - Breaking change in EF Core 3.0:

DbQuery() is now obsolete, instead DbSet() should be used (again). If you have a keyless entity, i.e. it don't require primary key, you can use HasNoKey() method:

ModelBuilder.Entity<SomeModel>().HasNoKey()

More information can be found here

If the path is a drive, a slash will also appear in the path, and this time the use will cause problems. To unify, the best solution is the following command.

        Dim FileName As String = "MyFileName"
    Dim MyPath1 As String = Application.StartupPath().TrimEnd("\") & "\" & FileName
    Dim MyPath2 As String = My.Application.Info.DirectoryPath.TrimEnd("\") & "\" & FileName

In order to remove a row from a JTable, you need to remove the target row from the underlying TableModel. If, for instance, your TableModel is an instance of DefaultTableModel, you can remove a row by doing the following:

((DefaultTableModel)myJTable.getModel()).removeRow(rowToRemove);

It is worth noting that if you use the setContentOffset approach, it may cause your table view/collection view to jump a little. I would honestly try to go about this another way. A recommendation is to use the scroll view delegate methods you are given for free.

SELECT * FROM 
(SELECT [UserID] FROM [User]) a
LEFT JOIN (SELECT [TailUser], [Weight] FROM [Edge] WHERE [HeadUser] = 5043) b
ON a.UserId = b.TailUser

The beauty of the React Native is that it supports lots of JS libraries like Moment.js. Using moment.js would be a better/easier way to handle date/time instead coding from scratch

just run this in the terminal (yarn add moment also works if using React's built-in package manager):

npm install moment --save

And in your React Native js page:

import Moment from 'moment';

render(){
    Moment.locale('en');
    var dt = '2016-05-02T00:00:00';
    return(<View> {Moment(dt).format('d MMM')} </View>) //basically you can do all sorts of the formatting and others
}

You may check the moment.js official docs here https://momentjs.com/docs/

I had this problem just now and managed to figure out what it was. Was referencing a colour in my values that was causing problems. So defined it manually instead of using one from the dropdown suggestions.Then it worked!

I've created the following script and it worked for me just fine.

#! /bin/sh
cd $(dirname $0)
DB=$1
DBUSER=$2
DBPASSWD=$3
FILE=$DB-$(date +%F).sql
mysqldump --routines "--user=${DBUSER}"  --password=$DBPASSWD $DB > $PWD/$FILE
gzip $FILE
echo Created $PWD/$FILE*

and you call the script using command line arguments.

backupdb.sh my_db dev_user dev_password

Yes we do it all the time. You return a static instance rather than a new Object

 static Direction getOppositeDirection(Direction d){
       Direction result = null;
       if (d != null){
           int newCode = -d.getCode();
           for (Direction direction : Direction.values()){
               if (d.getCode() == newCode){
                   result = direction;
               }
           }
       }
       return result;
 }

In the meantime, a time-window capability was added. See this link.

In [1]: df = DataFrame({'B': range(5)})

In [2]: df.index = [Timestamp('20130101 09:00:00'),
   ...:             Timestamp('20130101 09:00:02'),
   ...:             Timestamp('20130101 09:00:03'),
   ...:             Timestamp('20130101 09:00:05'),
   ...:             Timestamp('20130101 09:00:06')]

In [3]: df
Out[3]: 
                     B
2013-01-01 09:00:00  0
2013-01-01 09:00:02  1
2013-01-01 09:00:03  2
2013-01-01 09:00:05  3
2013-01-01 09:00:06  4

In [4]: df.rolling(2, min_periods=1).sum()
Out[4]: 
                       B
2013-01-01 09:00:00  0.0
2013-01-01 09:00:02  1.0
2013-01-01 09:00:03  3.0
2013-01-01 09:00:05  5.0
2013-01-01 09:00:06  7.0

In [5]: df.rolling('2s', min_periods=1).sum()
Out[5]: 
                       B
2013-01-01 09:00:00  0.0
2013-01-01 09:00:02  1.0
2013-01-01 09:00:03  3.0
2013-01-01 09:00:05  3.0
2013-01-01 09:00:06  7.0

You can achieve what you want, but with a different syntax. You can use a "finally" block after the try/except. Doing this way, python will execute the block of code regardless the exception was thrown, or not.

Like this:

try:
    do_smth1()
except:
    pass
finally:
    do_smth2()

But, if you want to execute do_smth2() only if the exception was not thrown, use a "else" block:

try:
    do_smth1()
except:
    pass
else:
    do_smth2()

You can mix them too, in a try/except/else/finally clause. Have fun!