Examples On Programing Languages

How to mount a single file in a volume

I am trying to dockerize a PHP application. In the dockerfile, I download the archive, extract it, etc. Everything works fine. However, if a new version gets released and I update the dockerfile, I have to reinstall the application, because the confi...

Angular 2 - Using 'this' inside setTimeout

I have a function like so in my class showMessageSuccess(){ var that = this; this.messageSuccess = true; setTimeout(function(){ that.messageSuccess = false; },3000); } How can I re-write this so I don't have to store a...

How do I mock a REST template exchange?

I have a service in which I need to ask an outside server via rest for some information: public class SomeService { public List<ObjectA> getListofObjectsA() { List<ObjectA> objectAList = new ArrayList<ObjectA>(); ...

Can I have two JavaScript onclick events in one element?

Can we put two JavaScript onclick events in one input type button tag? To call two different functions?...

Android: ProgressDialog.show() crashes with getApplicationContext

I can't seem to grasp why this is happening. This code: mProgressDialog = ProgressDialog.show(this, "", getString(R.string.loading), true); works just fine. However, this code: mProgressDialog = ProgressDialog.show(getApplicationContext(), "", ge...

How to make a script wait for a pressed key?

I want my script to wait until the user presses any key. How do I do that?...

Adding external resources (CSS/JavaScript/images etc) in JSP

I added an external CSS stylesheet to my project and placed in the WEB-CONTENTS folder of my project in Eclipse. When I deployed it on the Tomcat, the stylesheet was not applied. When I debugged it in Chrome and opened it, it gave me 404 file not fou...

How to order citations by appearance using BibTeX?

By default (using the plain style) BibTeX orders citations alphabetically. How to order the citations by order of appearance in the document?...

What's the best way to do a backwards loop in C/C#/C++?

I need to move backwards through an array, so I have code like this: for (int i = myArray.Length - 1; i >= 0; i--) { // Do something myArray[i] = 42; } Is there a better way of doing this? Update: I was hoping that maybe C# had some bu...

htaccess <Directory> deny from all

I've been cleaning up my project lately. I have a main .htaccess in the root directory and 6 others. 5 of them ran Options -Indexes which i didn't see anypoint of allowing any Directory viewing so moved that to the main one. so now i only have 2 .hta...

How to execute the start script with Nodemon

How can I execute the start script from a package.json file with Nodemon?...

How do I purge a linux mail box with huge number of emails?

I have setup some cron jobs and they send the crons result to an email. Now over the months I have accumulated a huge number of emails. Now my question is how can I purge all those emails from my mailbox?...

static and extern global variables in C and C++

I made 2 projects, the first one in C and the second one in C++, both work with same behavior. C project: header.h int varGlobal=7; main.c #include <stdio.h> #include <stdlib.h> #include "header.h" void function(int i) { static...

Regex, every non-alphanumeric character except white space or colon

How can I do this one anywhere? Basically, I am trying to match all kinds of miscellaneous characters such as ampersands, semicolons, dollar signs, etc....

How do I undo the most recent local commits in Git?

I accidentally committed the wrong files to Git, but didn't push the commit to the server yet. How can I undo those commits from the local repository?...

Git/GitHub can't push to master

I am new to Git/GitHub and ran into an issue. I created a test project and added it to the local repository. Now I am trying to add files/project to the remote repository. Here's what I did (and this worked) - git remote add origin git://github.com...

Raw_Input() Is Not Defined

I'm a seventh grade programmer so I may be missing a lot of things in this program, but for my coding club my instructor asked us to make a guess the number game. I have very limited knowledge on this subject, since I've only attended four classes. A...

How to display svg icons(.svg files) in UI using React Component?

I have seen lot libraries for svg on react but none gave me how to import a .svg in the react component , I have seen code which talk about bring the svg code in to react rather than using the .svg icon as image and show it in the UI . Please let me...

A message body writer for Java type, class myPackage.B, and MIME media type, application/octet-stream, was not found

I am new at RESTful webservices and was trying to update my @OneToMany relationship from a standalone client application, but I am not able to do that. I am using the Jersey implementation of JAX-RS that ships with Glassfish 3.1.1. I have a class A ...

How do I serialize a C# anonymous type to a JSON string?

I'm attempting to use the following code to serialize an anonymous type to JSON: var serializer = new DataContractJsonSerializer(thing.GetType()); var ms = new MemoryStream(); serializer.WriteObject(ms, thing); var json = Encoding.Default.GetString(...

What is the Swift equivalent of respondsToSelector?

I've googled but not been able to find out what the swift equivalent to respondsToSelector: is. This is the only thing I could find (Swift alternative to respondsToSelector:) but isn't too relevant in my case as its checking the existence of the del...

java.lang.ClassNotFoundException: org.springframework.core.io.Resource

I'm using spring 4.0.5, Hibernate 4.3.5 and JSF for web developpement in eclipse, and this is the content of my lib folder : When I run my project I get this error : java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException...

Adding n hours to a date in Java?

How do I add n hours to a Date object? I found another example using days on StackOverflow, but still don't understand how to do it with hours....

PHP Call to undefined function

I am trying to call a function from another function. I get an error: Fatal error: Call to undefined function getInitialInformation() in controller.php on line 24 controller.php file: require_once("model/model.php"); function intake() { $i...

Regex pattern inside SQL Replace function?

SELECT REPLACE('<strong>100</strong><b>.00 GB', '%^(^-?\d*\.{0,1}\d+$)%', ''); I want to replace any markup between two parts of the number with above regex, but it does not seem to work. I'm not sure if it is regex syntax that's ...

Reverting to a previous revision using TortoiseSVN

What is the easiest way to revert my working copy to a previous revision using Windows TortoiseSVN? I did not find any "findable" command to do that quickly....

How can I modify a saved Microsoft Access 2007 or 2010 Import Specification?

Does anyone know how to modify an existing import specification in Microsoft Access 2007 or 2010? In older versions there used to be an Advanced button presented during the import wizard that allowed you to select and edit an existing specification....

TSQL select into Temp table from dynamic sql

This seems relatively simple, but apparently it's not. I need to create a temp table based on an existing table via the select into syntax: SELECT * INTO #TEMPTABLE FROM EXISTING_TABLE The problem is, the existing table name is accepted via a par...

align right in a table cell with CSS

I have the old classic code like this <td align="right"> which does what it says: it right aligns the content in the cell. So if I put 2 buttons in this cell, they will appear at the right site of the cell. But then I was refactoring this t...

You have not concluded your merge (MERGE_HEAD exists)

I made a branch called 'f' and did a checkout to master. When I tried the git pull command I got this message: You have not concluded your merge (MERGE_HEAD exists). Please, commit your changes before you can merge. When I try the git status, it g...

Is there a Mutex in Java?

Is there a Mutex object in java or a way to create one? I am asking because a Semaphore object initialized with 1 permit does not help me. Think of this case: try { semaphore.acquire(); //do stuff semaphore.release(); } catch (Exception e) ...

img src SVG changing the styles with CSS

html <img src="logo.svg" alt="Logo" class="logo-img"> css .logo-img path { fill: #000; } The above svg loads and is natively fill: #fff but when I use the above css to try change it to black it doesn't change, this is my first time play...

Set default format of datetimepicker as dd-MM-yyyy

I have a datetimepicker which on loading of windows form shows me format in 'MM-dd-yyyy', as follows: I would like it in dd-MM-yyyy. I tried the following: set custom format: "dd-MM-yyyy" But Its not changing. What could be the problem? Plea...

How to navigate a few folders up?

One option would be to do System.IO.Directory.GetParent() a few times. Is there a more graceful way of travelling a few folders up from where the executing assembly resides? What I trying to do is to find a text file that resides one folder above th...

How to reduce the image size without losing quality in PHP

I am trying to develop an image-based web site. I am really confused about the best image type for faster page loading speeds and best compression practices. Please advise me on the best way to compress image sizes....

What is The difference between ListBox and ListView

What is the difference between WPF's ListBox and ListView? I can not find any significant difference in their properties. Is there different typical use?...

Differentiate between function overloading and function overriding

Differentiate between function overloading and function overriding in C++?...

What's the best practice using a settings file in Python?

I have a command line script that I run with a lot of arguments. I have now come to a point where I have too many arguments, and I want to have some arguments in dictionary form too. So in order to simplify things I would like to run the script with...

Pure CSS to make font-size responsive based on dynamic amount of characters

I know that this could be solved fairly easily with Javascript, but I'm only interested in a pure CSS solution. I want a way to dynamically resize text so that it always fits into a fixed div. Here is the sample markup: _x000D_ _x000D_ <div sty...

Find a class somewhere inside dozens of JAR files?

How would you find a particular class name inside lots of jar files? (Looking for the actual class name, not the classes that reference it.)...

How to get the query string by javascript?

How to extract the query string from the URL in javascript? Thank you!...

IE 8: background-size fix

I've tried to add background size to IE but it's not working at all: HTML <h2 id="news">Notícias <img src="white-marker.png" alt="" /></h2> CSS: div#content h2#news { background: url('../images/news-background.jpg') no-rep...

Making a Bootstrap table column fit to content

I'm using Bootstrap, and drawing a table. The rightmost column has a button in it, and I want it to drop down to the minimum size it needs to fit said button. _x000D_ _x000D_ <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstr...

How to implement the Android ActionBar back button?

I have an activity with a listview. When the user click the item, the item "viewer" opens: List1.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {...

How to set the "Content-Type ... charset" in the request header using a HTML link

I have a simple HTML-page with a UTF-8 encoded link. <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body> <a charset='UTF-8' href='http://server/search?q=%C3...

Resolving require paths with webpack

I'm still confused how to resolve module paths with webpack. Now I write: myfile = require('../../mydir/myfile.js') but I'd like to write myfile = require('mydir/myfile.js') I was thinking that resolve.alias may help since I see a similar exa...

PHP Deprecated: Methods with the same name

I am getting an error saying Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; TSStatus has a deprecated constructor in C:\Program Files (x86)\Zend\Apache24\htdocs\viewer\modules\tsstatus\t...

Making Python loggers output all messages to stdout in addition to log file

Is there a way to make Python logging using the logging module automatically output things to stdout in addition to the log file where they are supposed to go? For example, I'd like all calls to logger.warning, logger.critical, logger.error to go to ...

Rotating a Vector in 3D Space

I am making an android project in opengl es that uses accelerometer to calculate change in specific axes and my aim is to rotate my spacecraft-like object's movement vector. The problem is that i can't understand the math behind rotation matrices. De...

how to prevent adding duplicate keys to a javascript array

I found a lot of related questions with answers talking about for...in loops and using hasOwnProperty but nothing I do works properly. All I want to do is check whether or not a key exists in an array and if not, add it. I start with an empty array ...

How to set an image's width and height without stretching it?

If I have: #logo { width: 400px; height: 200px; } then <img id="logo" src="logo.jpg"/> will stretch to fill that space. I want the image to stay the same size, but for it to take up that much space in the DOM. Do I have to add an...

intl extension: installing php_intl.dll

I'm trying to locate php_intl.dll and install it. Does anyone have any tips?...

How to handle change text of span

I'm using jQuery and I want to show some calculation in a span (called span1) and I want when text of span1 changed do some calculation on it's value and show in other spans (called `span2 ,span3,...). How I can handle text change of span?...

Reading/parsing Excel (xls) files with Python

What is the best way to read Excel (XLS) files with Python (not CSV files). Is there a built-in package which is supported by default in Python to do this task?...

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '''')' at line 2

I am getting an Error in MySQL: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '''')' at line 2'. HTML Code: <form action="read_message.php" method="post"...

how to log in to mysql and query the database from linux terminal

I am using debian linux. I have a linux machine on which mysql is install. I can log in to my linux machine using root user as well as other user. I can connect to mysql database on linux machine from windows machine using sqlyog. Now I want to execu...

laravel Unable to prepare route ... for serialization. Uses Closure

When I clear caches in my Laravel 5.2 project, I see this error message: [LogicException] Unable to prepare route [panel] for serialization. Uses Closure. I think that it's related with a route Route::get('/article/{slug}', 'Front@slug'); ass...

Find a string by searching all tables in SQL Server Management Studio 2008

Is there any way to search for a string in all tables of a database in SQL Server Management Studio 2008? I want to search for string say john. The result should show the tables and their respective row that contain john. ...

How to write macro for Notepad++?

I would like to write a macro for Notepad++ which should replace char1, char2, char3 with char4, char5, char6, respectively....

sql primary key and index

Say I have an ID row (int) in a database set as the primary key. If I query off the ID often do I also need to index it? Or does it being a primary key mean it's already indexed? Reason I ask is because in MS SQL Server I can create an index on this...

How do I change the font-size of an <option> element within <select>?

I have built this fiddle as an example of what I am doing. What I am trying to do works fine in Firefox. With the font-size being 14px when you open up the select options. However looking at it in Google Chrome it picks the inherited font-size of 34p...

Google maps API V3 - multiple markers on exact same spot

Bit stuck on this one. I am retrieving a list of geo coords via JSON and popping them onto a google map. All is working well except in the instance when I have two or more markers on the exact same spot. The API only displays 1 marker - the top on...

javascript getting my textbox to display a variable

So I have some basic code in html here, i just have two textbox which u can type numbers in and when you click the button, it adds em both up, and in a perfect world, it would display the answer in that third textbox. <html> <head> </h...

FileNotFoundException while getting the InputStream object from HttpURLConnection

I am trying to send a post request to a url using HttpURLConnection (for using cUrl in java). The content of the request is xml and at the end point, the application processes the xml and stores a record to the database and then sends back a respons...

How to enable explicit_defaults_for_timestamp?

When I try to start my mySQL server I get message: [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). I find answer on: http://dev....

How can I get the browser's scrollbar sizes?

How can I determine the height of a horizontal scrollbar, or the width of a vertical one, in JavaScript?...

Getting Spring Application Context

Is there a way to statically/globally request a copy of the ApplicationContext in a Spring application? Assuming the main class starts up and initializes the application context, does it need to pass that down through the call stack to any classes t...

Can you set a border opacity in CSS?

Is there a straight forward CSS way to make the border of an element semi-transparent with something like this? border-opacity: 0.7; If not, does anyone have an idea how I could do so without using images?...

How to iterate over the keys and values with ng-repeat in AngularJS?

In my controller, I have data like: $scope.object = data Now this data is the dictionary with keys and values from json. I can access the attribute with object.name in the template. Is there any way that I can iterate over the keys as well and disp...

Display all items in array using jquery

I have an array that I want to have displayed in html.. I don't want to write multiple lines for posting each item in the array but all should be exactly the same. ie var array = []; //code that fills the array.. $('.element').html('<span>'+ar...

IN-clause in HQL or Java Persistence Query Language

I have the following parametrised JPA, or Hibernate, query: SELECT entity FROM Entity entity WHERE name IN (?) I want to pass the parameter as an ArrayList<String>, is this possible? Hibernate current tells me, that java.lang.ClassCastExceptio...

How do I set a fixed background image for a PHP file?

I have an .html file with a login form and wish to recreate it and save it as a .php file. However, I'm encountering difficulties with setting the background image and other CSS related stuff. Below is my code for the .php which I'm sure it won't p...

ng-change not working on a text input

I am new to angular js. In my code there is color picker initialized from a text field. User changes the value of color and I want that color to be reflected as a background of a text in a span. It is not working. What is missing? HTML: <body ng...

No Persistence provider for EntityManager named

I have my persistence.xml with the same name using TopLink under the META-INF directory. Then, I have my code calling it with: EntityManagerFactory emfdb = Persistence.createEntityManagerFactory("agisdb"); Yet, I got the following error message: ...

Export HTML table to pdf using jspdf

I need to export the HTML table to pdf file using jspdf. I tried the below code but it displays the blank/empty output in pdf file. Any suggestions or sample code for this would be helpful. ` <script type="text/javascript"> function demo1(...

How can I specify working directory for popen

Is there a way to specify the running directory of command in Python's subprocess.Popen()? For example: Popen('c:\mytool\tool.exe', workingdir='d:\test\local') My Python script is located in C:\programs\python Is is possible to run C:\mytool\too...

Detect browser or tab closing

Is there any cross-browser JavaScript/jQuery code to detect if the browser or a browser tab is being closed, but not due to a link being clicked?...

how to get yesterday's date in C#

I want to retrieve yesterday's date in my ASP.NET web application using C#. I already digged about the topic but I guess I m not able to understand it. Code i m using is just giving me todays date string yr = DateTime.Today.Year.ToString()...

Uploading both data and files in one form using Ajax?

I'm using jQuery and Ajax for my forms to submit data and files but I'm not sure how to send both data and files in one form? I currently do almost the same with both methods but the way in which the data is gathered into an array is different, the ...

Losing Session State

I have an ASP.net application where Users aren't able to successfully complete certain actions, for reasons, I'm assuming, can only be related to losing their session (which is where I maintain their current user information, and how determine whethe...

Why are interface variables static and final by default?

Why are interface variables static and final by default in Java?...

Python constructors and init

Why are constructors indeed called "Constructors"? What is their purpose and how are they different from methods in a class? Also, can there be more that one __init__ in a class? I tried the following, can someone please explain the result?...

linux script to kill java process

I want linux script to kill java program running on console. Following is the process running as jar. [rapp@s1-dlap0 ~]$ ps -ef |grep java rapp 9473 1 0 15:03 pts/1 00:00:15 java -jar wskInterface-0.0.1-SNAPSHOT-jar-with-dependencies.jar ...

Where's the DateTime 'Z' format specifier?

[Update: Format specifiers are not the same thing as format strings; a format specifier is a piece of a custom format string, where a format string is 'stock' and doesn't provide customization. My problem is with specifiers not formats] I've been tr...

java.io.StreamCorruptedException: invalid stream header: 7371007E

I have a client Server application which communicate using objects. when I send only one object from the client to server all works well. when I attempt to send several objects one after another on the same stream I get StreamCorruptedException....

Converting Varchar Value to Integer/Decimal Value in SQL Server

How to convert the value of records in a table with data type varchar to integer or decimal so I can get the sum of the value. I use SQL Server 2005. Say that I have table structure like this: ID int Stuff varchar and the records ID = 1, Stuff =...

"Cannot allocate an object of abstract type" error

Error is here: vector<Graduate *> graduates; graduates.push_back(new AliceUniversity(identifier,id,salary,average)); Grandparent class: Graduate::Graduate(char identifier, long id, int salary, ...

Add ... if string is too long PHP

I have a description field in my MySQL database, and I access the database on two different pages, one page I display the whole field, but on the other, I just want to display the first 50 characters. If the string in the description field is less t...

How to install mysql-connector via pip

I use sqlalchemy to access MySQL in my Python project. sqlalchemy's conf is like this: dialect=mysql driver=mysqlconnector So I need to install the Python module mysql connector via pip. Any help?...

How to run Pip commands from CMD

As I understand, Python 2.7.9 comes with Pip installed, however when I try to execute a Pip command from CMD (Windows) I get the following error: 'pip' is not recognized as an internal or external command, operable program or batch file. When I t...

Warning: Found conflicts between different versions of the same dependent assembly

I am currently developing a .NET application, which consists of 20 projects. Some of those projects are compiled using .NET 3.5, some others are still .NET 2.0 projects (so far no problem). The problem is that if I include an external component I al...

PostgreSQL delete with inner join

DELETE B.* FROM m_productprice B INNER JOIN m_product C ON B.m_product_id = C.m_product_id WHERE C.upc = '7094' AND B.m_pricelist_version_id = '1000020' i am getting the following error PostgreSQL 8.2.11 ERROR: syntax error at or ne...

Angular2 @Input to a property with get/set

I have an Angular2 component in that component it currently has a bunch fields that have @Input() applied before them to allow binding to that property, i.e. @Input() allowDay: boolean; What I would like to do is actually bind to a property with g...

Adding <script> to WordPress in <head> element

I'm trying to insert this code: <script type="text/javascript"> some Javascript codes comes here </script> to WordPress' <head></head> section in front end and in admin panel E.g., Joomla! 1.6 has an API that allows t...

Using tr to replace newline with space

Have output from sed: http://sitename.com/galleries/83450 72-profile Those two strings should be merged into one and separated with space like: http://sitename.com/galleries/83450 72-profile Two strings are pipelined to tr in order to replace n...

Kubernetes service external ip pending

I am trying to deploy nginx on kubernetes, kubernetes version is v1.5.2, I have deployed nginx with 3 replica, YAML file is below, apiVersion: extensions/v1beta1 kind: Deployment metadata: name: deployment-example spec: replicas: 3 revisionHist...

How to get C# Enum description from value?

I have an enum with Description attributes like this: public enum MyEnum { Name1 = 1, [Description("Here is another")] HereIsAnother = 2, [Description("Last one")] LastOne = 3 } I found this bit of code for retrieving the descr...

Split String by delimiter position using oracle SQL

I have a string and I would like to split that string by delimiter at a certain position. For example, my String is F/P/O and the result I am looking for is: Therefore, I would like to separate the string by the furthest delimiter. Note: some of ...

What is the best way to add a value to an array in state

I have an array in state, let's say this.state.arr. I want to add something to this state property, and then change some more properties. Option 1 onChange(event){ this.state.arr.push('newvalue'); ... this.setState({some:'val',arr:this....

Bootstrap tab activation with JQuery

I have the following code: <ul class="nav nav-tabs"> <li><a href="#aaa" data-toggle="tab">AAA</a></li> <li><a href="#bbb" data-toggle="tab">BBB</a&...

How can I find a specific element in a List<T>?

My application uses a list like this: List<MyClass> list = new List<MyClass>(); Using the Add method, another instance of MyClass is added to the list. MyClass provides, among others, the following methods: public void SetId(String Id...

How to change an Eclipse default project into a Java project

I checked out a project from SVN and did not specify the project type, so it checked out as a "default" project. What is the easiest way to quickly convert this into a "Java" project? I'm using Eclipse version 3.3.2....

How to solve time out in phpmyadmin?

I want import huge (at least 300 mb) sql scripts via phpMyAdmin. I've tried: post_max_size = 750M upload_max_filesize = 750M max_execution_time = 300 max_input_time = 540 memory_limit = 1000M in my php.ini file, but I'm still getting timeout erro...

How to set gradle home while importing existing project in Android studio

How to set gradle home while importing existing project in Android studio. While trying to import I need to set up this path. ...

Changing plot scale by a factor in matplotlib

I am creating a plot in python. Is there a way to re-scale the axis by a factor? The yscale and xscale commands only allow me to turn log scale off. Edit: For example. If I have a plot where the x scales goes from 1 nm to 50 nm, the x scale will ra...

How do I log a Python error with debug information?

I am printing Python exception messages to a log file with logging.error: import logging try: 1/0 except ZeroDivisionError as e: logging.error(e) # ERROR:root:division by zero Is it possible to print more detailed information about the ex...

C++ where to initialize static const

I have a class class foo { public: foo(); foo( int ); private: static const string s; }; Where is the best place to initialize the string s in the source file?...

Mockito: Inject real objects into private @Autowired fields

I'm using Mockito's @Mock and @InjectMocks annotations to inject dependencies into private fields which are annotated with Spring's @Autowired: @RunWith(MockitoJUnitRunner.class) public class DemoTest { @Mock private SomeService service; ...

Could not install Gradle distribution from 'https://services.gradle.org/distributions/gradle-2.1-all.zip'

I am a greenhorn in gradle and i just tried to create a new Android Gradle Project in IntelliJ. After filling up the necessities it started to download something which took hours so i decided to force quit my IDE and open the project again. And now ...

Write values in app.config file

can anyone please help me how can I set/store values in the app.config file using c#, is it possible at all?...

Check if an image is loaded (no errors) with jQuery

I'm using JavaScript with the jQuery library to manipulate image thumbnails contained in a unordered list. When the image is loaded it does one thing, when an error occurs it does something else. I'm using jQuery load() and error() methods as events....

Converting Symbols, Accent Letters to English Alphabet

The problem is that, as you know, there are thousands of characters in the Unicode chart and I want to convert all the similar characters to the letters which are in English alphabet. For instance here are a few conversions: ?->H ?->V ?->Y...

How to convert a table to a data frame

I have a table in R that has str() of this: table [1:3, 1:4] 0.166 0.319 0.457 0.261 0.248 ... - attr(*, "dimnames")=List of 2 ..$ x: chr [1:3] "Metro >=1 million" "Metro <1 million" "Non-Metro Counties" ..$ y: chr [1:4] "q1" "q2" "q3" "...

Adding a Button to a WPF DataGrid

I want to create a DataGrid control in WPF in which there is a button in the first cell of each row. Clicking this button will show RowDetailsTemplate or the SubRow. How do I add a button which will show/Hide the RowDetailsTemplate?...

node.js - request - How to "emitter.setMaxListeners()"?

When I do a GET on a certain URI using the node.js 'request' module; var options = {uri:"aURI", headers:headerData}; request.get(options, function (error, response, body) { } The error message is: [Error: Exceeded maxRedirects. Probably stuck in ...

Matplotlib tight_layout() doesn't take into account figure suptitle

If I add a subtitle to my matplotlib figure it gets overlaid by the subplot's titles. Does anybody know how to easily take care of that? I tried the tight_layout() function, but it only makes things worse. Example: import numpy as np import matplot...

How to prevent IFRAME from redirecting top-level window

Some websites have code to "break out" of IFRAME enclosures, meaning that if a page A is loaded as an IFRAME inside an parent page P some Javascript in A redirects the outer window to A. Typically this Javascript looks something like this: <scri...

Sum all the elements java arraylist

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I have a Java date object: Date currentDate = new Date(); This will give the current date and time. Example: Thu Jan 12 10:17:47 GMT 2012 Instead, I want to get the date, changing it to one hour back so it should give me: Thu Jan 12 09:17:47 G...

Plot multiple lines (data series) each with unique color in R

I am fairly new to R and I have the following queries : I am trying to generate a plot in R which has multiple lines (data series). Each of these lines is a category and I want it to have a unique color. Currently my code is setup in this way : F...

What are the differences between the different saving methods in Hibernate?

Hibernate has a handful of methods that, one way or another, takes your object and puts it into the database. What are the differences between them, when to use which, and why isn't there just one intelligent method that knows when to use what? The ...

SQL Server Creating a temp table for this query

I have this query: DECLARE @ProjectID int = 3, @Year int = 2010, @MeterTypeID int = 1, @StartDate datetime, @EndDate datetime SET @StartDate = '07/01/' + CAST(@Year as VARCHAR) SET @EndDate = '06/30/' + CAST(@Year+1 as VARCHAR) SELECT tblMEP_Sit...

Jackson: how to prevent field serialization

I have an entity class with a password field: class User { private String password; //setter, getter.. } I want this field to be skipped during serialization. But it should still be able to deserialize. This is needed, so that the client ca...

Illegal pattern character 'T' when parsing a date string to java.util.Date

I have a date string and I want to parse it to normal date use the java Date API,the following is my code: public static void main(String[] args) { String date="2010-10-02T12:23:23Z"; String pattern="yyyy-MM-ddThh:mm:ssZ"; SimpleDateForm...

How do you set your pythonpath in an already-created virtualenv?

What file do I edit, and how? I created a virtual environment....

input[type='text'] CSS selector does not apply to default-type text inputs?

The default input type is 'text'. I have always assumed then that CSS declarations targeting input[type='text'] would affect those inputs even if the type was not explicitly declared on the control. However, I just noticed that my default-type text i...

Can VS Code run on Android?

Does anybody know about plans of MS to support running VS Code so it can run on Android OS?...

Create comma separated strings C#?

I have an object which holds many values, some of them (not all values from the object) need to be put in a csv string. My approach was this: string csvString = o.number + "," + o.id + "," + o.whatever .... Somehow I think there is a better, more ...

Ansible: Set variable to file content

I'm using the ec2 module with ansible-playbook I want to set a variable to the contents of a file. Here's how I'm currently doing it. Var with the filename shell task to cat the file use the result of the cat to pass to the ec2 module. Example c...

Get statistics for each group (such as count, mean, etc) using pandas GroupBy?

I have a data frame df and I use several columns from it to groupby: df['col1','col2','col3','col4'].groupby(['col1','col2']).mean() In the above way I almost get the table (data frame) that I need. What is missing is an additional column that con...

Load an image from a url into a PictureBox

I want to load an image into a PictureBox. This is the image I want to load: http://www.gravatar.com/avatar/6810d91caff032b202c50701dd3af745?d=identicon&r=PG How do I do this?...

Center Plot title in ggplot2

This simple code (and all my scripts from this morning) has started giving me an off center title in ggplot2: Ubuntu version: 16.04 R studio version: Version 0.99.896 R version: 3.3.2 GGPLOT2 version: 2.2.0 I have freshly installed the above this...

How should the ViewModel close the form?

I'm trying to learn WPF and the MVVM problem, but have hit a snag. This question is similar but not quite the same as this one (handling-dialogs-in-wpf-with-mvvm)... I have a "Login" form written using the MVVM pattern. This form has a View...

Bootstrap 3 and Youtube in Modal

I'm trying to use the Modal feature from Bootstrap 3 to show my Youtube video. It works, but I can't click on any buttons in the Youtube video. Any help on this? Here's my code: <div id="link">My video</div> <div id="myModal" clas...

Find an object in SQL Server (cross-database)

If I've been told a table (or proc) name, but not which connected database the object is located in, is there any simple script to search for it? Maybe search somewhere in the System Databases? (I'm using SQL Server 2005)...

INSERT INTO a temp table, and have an IDENTITY field created, without first declaring the temp table?

I need to select a bunch of data into a temp table to then do some secondary calculations; To help make it work more efficiently, I would like to have an IDENTITY column on that table. I know I could declare the table first with an identity, then in...

How can I add (simple) tracing in C#?

I want to introduce some tracing to a C# application I am writing. Sadly, I can never really remember how it works and would like a tutorial with reference qualities to check up on every now and then. It should include: App.config / Web.config stuff...

Gaussian fit for Python

I'm trying to fit a Gaussian for my data (which is already a rough gaussian). I've already taken the advice of those here and tried curve_fit and leastsq but I think that I'm missing something more fundamental (in that I have no idea how to use the c...

How to get a jqGrid selected row cells value

Does anyone know how to get the cells value of the selected row of JQGrid ? i m using mvc with JQGrid, i want to access the value of the hidden column of the selected row ?...

Customize list item bullets using CSS

Is it possible to change the size of an <li> element's bullet? Take a look at the code below: li { list-style: square; // I want to change the size of this squared bullet. } I can't seem to find any way to achieve that....

How to convert a HTMLElement to a string

I am going to create an XML element in JavaScript to exchange data with server side. I found I can do it with document.createElement. But I do not know how to convert it to string. Is there any API in browser to make it easier? Or is there any JS lib...

Editing legend (text) labels in ggplot

I have spent hours looking in the documentation and on StackOverflow, but no solution seems to solve my problem. When using ggplot I can't get the right text in the legend, even though it's in my dataframe. I have tried scale_colour_manual, scale_fi...

WebSocket with SSL

Is it possible to have WebSockets with HTTPS? When switching to HTTPS, my WebSocket returns a security error and works perfectly with regular HTTP. Below, a snippet; socket = new WebSocket("ws://my_www:1235"); ...

jQuery - Redirect with post data

How can I redirect with post data? How to move to new page with $_POST? How to do this? How is it done and whyfore shall it be done...

Parsing JSON with Unix tools

I'm trying to parse JSON returned from a curl request, like so: curl 'http://twitter.com/users/username.json' | sed -e 's/[{}]/''/g' | awk -v k="text" '{n=split($0,a,","); for (i=1; i<=n; i++) print a[i]}' The above splits the JSON int...

How to set an environment variable from a Gradle build?

I'm trying to set an environment variable from my Gradle build. I'm on MacOS X (El Capitan). The command is "gradle test". I'm trying this in my build.gradle: task setenv(type: Exec) { commandLine "export", "SOME_TEST_VAR=aaa" } test.dependsOn ...

Use virtualenv with Python with Visual Studio Code in Ubuntu

I have a Python project and navigation/autocomplete work perfectly within files in the project. I want to specify a virtualenv so that navigation/autocomplete work with packages inside that virtualenv. I tried this in settings.py, but navigation/auto...

TypeScript and React - children type?

I have a very simple functional component as follows: import * as React from 'react'; export interface AuxProps { children: React.ReactNode } const aux = (props: AuxProps) => props.children; export default aux; And another component:...

SVN icon overlays not showing properly

I'm testing SVN. After the configuration, I can add/commit the files successfully. However, I can't see the status icons on the files and folders. Can anybody tell me why?...

Moment.js: Date between dates

I'm trying to detect with Moment.js if a given date is between two dates. Since version 2.0.0, Tim added isBefore() and isAfter() for date comparison. Since there's no isBetween() method, I thought this would work: var date = moment("15/02/2013", "...

Strip all non-numeric characters from string in JavaScript

Consider a non-DOM scenario where you'd want to remove all non-numeric characters from a string using JavaScript/ECMAScript. Any characters that are in range 0 - 9 should be kept. var myString = 'abc123.8<blah>'; //desired output is 1238 Ho...

Transparent image - background color

I'm wondering if it is possible to set a background color for transparent images? (only the image will have background color)...

How to retrieve images from MySQL database and display in an html tag

I created a MySQL database with a table using phpmyadmin. I created this table with a BLOB column to hold a jpeg file. I have issues with regards to the php variable $result here. My code so far: (catalog.php): <body> <?php $link = mys...

Most Pythonic way to provide global configuration variables in config.py?

In my endless quest in over-complicating simple stuff, I am researching the most 'Pythonic' way to provide global configuration variables inside the typical 'config.py' found in Python egg packages. The traditional way (aah, good ol' #define!) is a...