#Fitsharp | Questions on Fitsharp

Cycles in an Undirected Graph

Given an undirected graph G=(V, E) with n vertices (|V| = n), how do you find if it contains a cycle in O(n)?..

Convert String XML fragment to Document Node in Java

In Java how can you convert a String that represents a fragment of XML for insertion into an XML document? e.g. String newNode = "<node>value</node>"; // Convert this to XML Then ins..

How to use "raise" keyword in Python

I have read the official definition of "raise", but I still don't quite understand what it does. In simplest terms, what is "raise"? Example usage would help...

How to format numbers?

I want to format numbers using JavaScript. For example: 10 => 10.00 100 => 100.00 1000 => 1,000.00 10000 => 10,000.00 100000 => 100,000.00 ..

How to use "not" in xpath?

I want to write something of the sort: //a[not contains(@id, 'xx')] (meaning all the links that there 'id' attribute doesn't contain the string 'xx') I can't find the right syntax...

Plotting a python dict in order of key values

I have a python dictionary that looks like this: In[1]: dict_concentration Out[2] : {0: 0.19849878712984576, 5000: 0.093917341754771386, 10000: 0.075060643507712022, 20000: 0.06673074282575861, 3000..

How to insert close button in popover for Bootstrap

JS: $(function(){ $("#example").popover({ placement: 'bottom', html: 'true', title : '<span class="text-info"><strong>title</strong></span> <button type="but..

Convert blob URL to normal URL

My page generates a URL like this: "blob:http%3A//localhost%3A8383/568233a1-8b13-48b3-84d5-cca045ae384f" How can I convert it to a normal address? I'm using it as an <img>'s src attribute...

CGRectMake, CGPointMake, CGSizeMake, CGRectZero, CGPointZero is unavailable in Swift

After converting code to latest swift 3.0 I am shown this error. Also tell me solution for CGSize = CGSizeMake(0,0) static var frameAtStartOfPan: CGRect = CGRectZero static var startPointOfPan: C..

How to add a TextView to a LinearLayout dynamically in Android?

I try to add a TextView to a LinearLayout dynamically such as in the following code, but it doesn't appear when I run the application? setContentView(R.layout.advanced); m_vwJokeLayout=(LinearLayout..

Build tree array from flat array in javascript

I have a complex json file that I have to handle with javascript to make it hierarchical, in order to later build a tree. Every entry of the json has : id : a unique id, parentId : the id of the pare..

ImageView in circular through xml

I'd Like to make any image from my ImageView to be circular with a border. I searched but couldn't find any useful information (anything that I tried didn't work). How can I achieve this through xm..

Jquery selector input[type=text]')

I wrote a code that basically selects all input type=text element like this: $('.sys input[type=text]').each(function () {} How do I change it to select input[type=text] or select?..

Barcode scanner for mobile phone for Website in form

I have inventory maintenance website up and running. currently the back end users are manually typing the item id on the system and using to search and do their work. I would like to automate the typi..

maximum value of int

Is there any code to find the maximum value of integer (accordingly to the compiler) in C/C++ like Integer.MaxValue function in java?..

Checking if object is empty, works with ng-show but not from controller?

I have a JS object declared like so $scope.items = {}; I also have a $http request that fills this object with items. I would like to detect if this item is empty, it appears that ng-show supports ..

Delete data with foreign key in SQL Server table

I'm going to delete data in an SQL Server table (parent) which has a relationship with another table (child). I tried the basic Delete query. But it isn't working (and I know it won't). DELETE FROM t..

How to display with n decimal places in Matlab

I was wondering how to use command to set up displaying with n decimal places in Matlab? Must n be restricted to some predetermined numbers? Or one can just specify any for n? Thanks and regards!..

How to stop asynctask thread in android?

I want to stop a AsyncTask thread from another AsyncTask thread. I have tried like new AsyncTask.cancel(true) to stop the background process but it didn't stop. Could any one help me on this?..

how to read System environment variable in Spring applicationContext

How to read the system environment variable in the application context? I want something like : <util:properties id="dbProperties" location="classpath:config_DEV/db.properties" /> or..

Error java.lang.OutOfMemoryError: GC overhead limit exceeded

I get this error message as I execute my JUnit tests: java.lang.OutOfMemoryError: GC overhead limit exceeded I know what an OutOfMemoryError is, but what does GC overhead limit mean? How can I solv..

The request failed or the service did not respond in a timely fashion?

I have the following error while I connect to SQL Server 2008 Management Studio with Windows authentication. "The request failed or the service did not respond in a timely fashion. Consult the event ..

Maven build Compilation error : Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project Maven

I have a maven project forked and cloned from a git repo onto my eclipse. It is build on Java 8. The first thing i do is perform a mvn clean install But I get following failure message: [INFO]..

Permission denied error on Github Push

Recently, I'm added as a member/contributor for Github project. I have cloned that project on local machine. I have made some changes and committed locally and now trying to Push changes to original ..

What is the difference between require() and library()?

What is the difference between require() and library()?..

Where are the python modules stored?

I have recently started learning Python and I have 2 questions relating to modules. Is there a way to obtain a list of Python modules available (i.e. installed) on a machine? I am using Ubuntu Karmi..

How to select the last column of dataframe

I have done some searching for the answer to this question, but all I can figure out is this: df[df.columns[len(df.columns)-1]] which to me seems unweildy, and un-pythonic (and slow?). What is t..

How to cut first n and last n columns?

How can I cut off the first n and the last n columns from a tab delimited file? I tried this to cut first n column. But I have no idea to combine first and last n column cut -f 1-10 -d "<CTR>v..

Max retries exceeded with URL in requests

I'm trying to get the content of App Store > Business: import requests from lxml import html page = requests.get("https://itunes.apple.com/in/genre/ios-business/id6000?mt=8") tree = html.fromstring(..

AngularJS HTTP post to PHP and undefined

I have a form with the tag ng-submit="login() The function gets called fine in javascript. function LoginForm($scope, $http) { $http.defaults.headers.post['Content-Type'] = 'application/x-www-fo..

Search a whole table in mySQL for a string

I'm trying to search a whole table in mySQL for a string. I want to search all fields and all entrees of a table, returning each full entry that contains the specified text. I can't figure out how ..

"insufficient memory for the Java Runtime Environment " message in eclipse

When I run my Java code in Eclipse, I get the following message: There is insufficient memory for the Java Runtime Environment to continue. Native memory allocation (malloc) failed to allocate 4088 b..

How do I fix the npm UNMET PEER DEPENDENCY warning?

I'm on Windows 10, with Node 5.6.0 and npm 3.6.0. I'm trying to install angular-material and mdi into my working folder. npm install angular-material mdi errors with: +-- [email protected] +-- UNMET PEE..

C compiling - "undefined reference to"?

I am making a reliable data transfer protocol and have the function prototype void tolayer5(int, char data[]); With the structs struct msg { char data[20]; }; struct pkt { int seqnum; int..

Count elements with jQuery

Is there a way to count how many elements on the page with a particular class?..

Best PHP IDE for Mac? (Preferably free!)

I need to find a good PHP IDE for Mac, but would prefer a free one. Any suggestions? Thanks!..

How to use switch statement inside a React component?

I have a React component, and inside the render method of the component I have something like this: render() { return ( <div> <div> // removed for ..

Unsupported major.minor version 52.0

Pictures: Command Prompt showing versions Picture of error Hello.java import java.applet.Applet; import java.awt.*; public class Hello extends Applet { // Java applet to draw "Hello World"..

Where can I download mysql jdbc jar from?

I installed and tried to use jasper report studio. The first brick wall you hit when you try to create a datasource for your reports is java.lang.ClassNotFoundException: com.mysql.jdbc.Driver The ..

PDOException “could not find driver”

I have just installed Debian Lenny with Apache, MySQL, and PHP and I am receiving a PDOException could not find driver. This is the specific line of code it is referring to: $dbh = new PDO('mysql:ho..

Why boolean in Java takes only true or false? Why not 1 or 0 also?

Is there any reason why Java booleans take only true or false why not 1 or 0 also?..

How to set a class attribute to a Symfony2 form input

How can I set the HTML class attribute to a form <input> using the FormBuilder in Symfony2 ? Something like this: ->add('birthdate', 'date',array( 'input' => 'datetime', 'wid..

data.frame rows to a list

I have a data.frame which I would like to convert to a list by rows, meaning each row would correspond to its own list elements. In other words, I would like a list that is as long as the data.frame h..

Converting a Pandas GroupBy output from Series to DataFrame

I'm starting with input data like this df1 = pandas.DataFrame( { "Name" : ["Alice", "Bob", "Mallory", "Mallory", "Bob" , "Mallory"] , "City" : ["Seattle", "Seattle", "Portland", "Seattle", ..

How to check if one of the following items is in a list?

I'm trying to find a short way to see if any of the following items is in a list, but my first attempt does not work. Besides writing a function to accomplish this, is the any short way to check if on..

Android - how to make a scrollable constraintlayout?

I want to make a layout that lets me scroll down using constraint layout, but I don't know how to go about it. Should the ScrollView be the parent of the ConstraintLayout like this? <?xml version=..

In PHP with PDO, how to check the final SQL parametrized query?

In PHP, when accessing MySQL database with PDO with parametrized query, how can you check the final query (after having replaced all tokens)? Is there a way to check what gets really executed by the ..

How to add click event to a iframe with JQuery

I have an iframe on a page, coming from a 3rd party (an ad). I'd like to fire a click event when that iframe is clicked in (to record some in-house stats). Something like: $('#iframe_id').click(funct..

How does delete[] know it's an array?

Alright, I think we all agree that what happens with the following code is undefined, depending on what is passed, void deleteForMe(int* pointer) { delete[] pointer; } The pointer could be all..

How to call python script on excel vba?

trying to call a python script on Vba and I am a newb. I tried converting the main script to an exe using py2exe and then calling it from VBA (shell) but the main script calls other scripts therefore ..

PHP: Split string

How do I split a string by . delimiter in PHP? For example, if I have the string "a.b", how do I get "a"? ..

Convert a String to Modified Camel Case in Java or Title Case as is otherwise called

I want to convert any string to modified Camel case or Title case using some predefined libraries than writing my own functions. For example "HI tHiS is SomE Statement" to "Hi This Is Some Statement..

When is the init() function run?

I've tried to find a precise explanation of what the init() function does in Go. I read what Effective Go says but I was unsure if I understood fully what it said. The exact sentence I am unsure is th..

Cannot lower case button text in android studio

I have a trivial question that has been bothering me for a while. I tried to google this but no one seems to have the same problem as me or doesn't see it as an issue. When I make a button in activity..

fatal: Not a git repository (or any of the parent directories): .git

When I tried to push an existing repository on github.com, and it when I entered the command the website prompted me to put into the terminal, I got this error message fatal: Not a g..

functional way to iterate over range (ES6/7)

What is the best way to do the below in more functional way (with ES6/ES7) let cols = []; for (let i =0; i <= 7; i++) { cols.push(i * i); } return cols; I tried like, return [ ...7 ].map(i =..

"Too many characters in character literal error"

I'm struggling with a piece of code and getting the error: Too many characters in character literal error Using C# and switch statement to iterate through a string buffer and reading tokens, but get..

What is correct content-type for excel files?

I want excel files on a website to open in Excel when clicked, not get saved on desktop, or get opened embedded in a browser etc. Now obviously it all depends on how everything is configured for each ..

How to get post slug from post in WordPress?

I want to get "abc_15_11_02_3" from http://example.com/project_name/abc_15_11_02_3/. How can i do this?..

React setState not updating state

So I have this: let total = newDealersDeckTotal.reduce(function(a, b) { return a + b; }, 0); console.log(total, 'tittal'); //outputs correct total setTimeout(() => { this.setState({dealersOve..

Ruby send JSON request

How do I send a JSON request in ruby? I have a JSON object but I dont think I can just do .send. Do I have to have javascript send the form? Or can I use the net/http class in ruby? With header - co..

What's the Use of '\r' escape sequence?

I have C code like this: #include<stdio.h> int main() { printf("Hey this is my first hello world \r"); return 0; } I have used the \r escape sequence as an experiment. When I run the ..

get all the elements of a particular form

function getInputElements() { var inputs = document.getElementsByTagName("input"); } The above code gets all the input elements on a page which has more than one form. How do I get the input ele..

Adding dictionaries together, Python

I have two dictionaries and I'd like to be able to make them one: Something like this pseudo-Python would be nice: dic0 = {'dic0': 0} dic1 = {'dic1': 1} ndic = dic0 + dic1 # ndic would equal {'dic0..

Finding the index of elements based on a condition using python list comprehension

The following Python code appears to be very long winded when coming from a Matlab background >>> a = [1, 2, 3, 1, 2, 3] >>> [index for index,value in enumerate(a) if value > 2] ..

How to get first/top row of the table in Sqlite via Sql Query

I need to fetch the first/top row of a table in a Sqlite database. But my program throws an SQLException "Sqlite Syntax Error: Syntax error near '1' " for the query that I am using: SELECT TOP 1 * ..

How to split string and push in array using jquery

var string = 'a,b,c,d'; var array = []; As we can see above I have one string values with separator*(,)*. I want to split these values and wants to push in the array. At last I want to read my array..

Delete certain lines in a txt file via a batch file

I have a generated txt file. This file has certain lines that are superfluous, and need to be removed. Each line that requires removal has one of two string in the line; "ERROR" or "REFERENCE". The..

Can't install APK from browser downloads

I've downloaded an APK from web, using the default browser and it can't be opened from the Browser -> Downloads. It tells me "Can't open file" But I can use a file browser (like OI File Browser) to ..

How do I revert back to an OpenWrt router configuration?

I recently ported Luci to an OpenWrt router. I was just exploring the thing. I disabled the DHCP server on LAN and enabled as DHCP client. I saved and applied the configuration to the router. Now afte..

Change color of Back button in navigation bar

I am trying to change the color of the Settings button to white, but can't get it to change. I've tried both of these: navigationItem.leftBarButtonItem?.tintColor = UIColor.whiteColor() navigationIt..

Can I load a .NET assembly at runtime and instantiate a type knowing only the name?

Is it possible to instantiate an object at runtime if I only have the DLL name and the class name, without adding a reference to the assembly in the project? The class implements a interface, so once ..

What's the best practice for primary keys in tables?

When designing tables, I've developed a habit of having one column that is unique and that I make the primary key. This is achieved in three ways depending on requirements: Identity integer column t..

Best way to define private methods for a class in Objective-C

I just started programming Objective-C and, having a background in Java, wonder how people writing Objective-C programs deal with private methods. I understand there may be several conventions and ha..

How can I convert integer into float in Java?

I have two integers x and y. I need to calculate x/y and as outcome I would like to get float. For example as an outcome of 3/2 I would like to have 1.5. I thought that easiest (or the only) way to do..

What is the difference between README and README.md in GitHub projects?

I've noticed some GitHub projects have not only a README file, but also a README.md file. What is the difference between these files? I know README serves also as introductory text in the project rep..

In Angular, how to pass JSON object/array into directive?

Currently, my app has a controller that takes in a JSON file then iterates through them using "ng-repeat". This is all working great, but I also have a directive that needs to iterate through the same..

Why does the C preprocessor interpret the word "linux" as the constant "1"?

Why does the C preprocessor in GCC interpret the word linux (small letters) as the constant 1? test.c: #include <stdio.h> int main(void) { int linux = 5; return 0; } Result of..

Copy row but with new id

I have a table "test" with an auto incremented id and an arbitrary number of columns. I want to make a copy of a row in this table with all columns the same except for the id of course. Is there a ..

GCC -fPIC option

I have read about GCC's Options for Code Generation Conventions, but could not understand what "Generate position-independent code (PIC)" does. Please give an example to explain me what does it mean...

Spring AMQP + RabbitMQ 3.3.5 ACCESS_REFUSED - Login was refused using authentication mechanism PLAIN

I am getting below exception org.springframework.amqp.AmqpAuthenticationException: com.rabbitmq.client.AuthenticationFailureException: ACCESS_REFUSED - Login was refused using authentication mecha..

How to add/update child entities when updating a parent entity in EF

The two entities are one-to-many relationship (built by code first fluent api). public class Parent { public Parent() { this.Children = new List<Child>(); } public int ..

Cannot resolve symbol 'AppCompatActivity'

I've just tried to use Android Studio. I've created blank project and tried to create Activity which extends AppCompatActivity. Unfortunalty Android Studio "says" that it Cannot resolve symbol 'Ap..

Combine two ActiveRecord::Relation objects

Suppose I have the following two objects: first_name_relation = User.where(:first_name => 'Tobias') # ActiveRecord::Relation last_name_relation = User.where(:last_name => 'Fünke') # ActiveRe..

What does mscorlib stand for?

mscorlib is definitely one of .net base class libraries and every program in C# depends on it, but what does it stand for? In the ECMA standard for the C# Language Specification the word is mentioned..

Auto-redirect to another HTML page

What is the syntax for making a page auto-redirect to a different HTML file in a separate folder? All of my searching returns how to redirect from one website to another...

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.child..

Iterate two Lists or Arrays with one ForEach statement in C#

This just for general knowledge: If I have two, let's say, List, and I want to iterate both with the same foreach loop, can we do that? Edit Just to clarify, I wanted to do this: List<String>..

Simulating ENTER keypress in bash script

I've created a really simple bash script that runs a few commands. one of these commands needs user input during runtime. i.e it asks the user "do you want to blah blah blah?", I want to simply send a..

Seaborn Barplot - Displaying Values

I'm looking to see how to do two things in Seaborn with using a bar chart to display values that are in the dataframe, but not in the graph 1) I'm looking to display the values of one field in a data..

Error Importing SSL certificate : Not an X.509 Certificate

I am trying to Update the SSL certificate in accordance with this post . I am noob in certificates, so i followed this guide. But, when i enter keytool -keystore mycacerts -storepass changeit -i..

Pass value to iframe from a window

I need to send a value to an iframe. The iframe is present within the current window. How can I achieve this? I need to do it with javascript in the parent window that contains the iframe...

Get all attributes of an element using jQuery

I am trying to go through an element and get all the attributes of that element to output them, for example an tag may have 3 or more attributes, unknown to me and I need to get the names and values ..

Merging Cells in Excel using C#

I have a database which contains 5 tables. Each table contains 24 rows and each row contains 4 columns. I want to display these records in Excel sheet. The heading of each table is the name of the ta..

Deep-Learning Nan loss reasons

Perhaps too general a question, but can anyone explain what would cause a Convolutional Neural Network to diverge? Specifics: I am using Tensorflow's iris_training model with some of my own data and k..

Android: How can I print a variable on eclipse console?

I wanted to print the value of a variable on the console for my debugging purpose, but System.out.println doesn't work...

Storing C++ template function definitions in a .CPP file

I have some template code that I would prefer to have stored in a CPP file instead of inline in the header. I know this can be done as long as you know which template types will be used. For example..

How do I pass an object to HttpClient.PostAsync and serialize as a JSON body?

I'm using System.Net.Http, I found several examples on the web. I managed to create this code for make a POST request: public static string POST(string resource, string token) { using (var client..

How to create a drop-down list?

How can I create a drop-down list? I've tried a ScrollView but it's not exactly what I need...

Regex - Does not contain certain Characters

I need a regex to match if anywhere in a sentence there is NOT either < or >. If either < or > are in the string then it must return false. I had a partial success with this but only if my <..

Add UIPickerView & a Button in Action sheet - How?

My application requires following things to be added in an action sheet. UIToolbar Button on UIToolbar UIPicker Control I have included an image to understand my requirements. Could you please ..

How to check if a subclass is an instance of a class at runtime?

In an android app test suite I have a class like this where B is a view: public class A extends B { ... etc... } now I have a list of view objects which may contain A objects but in this case I onl..

ModuleNotFoundError: No module named 'sklearn'

I want to import sklearn but there is no module apparently: ModuleNotFoundError: No module named 'sklearn' I am using Anaconda and Python 3.6.1; I have checked everywhere but still can't find answe..

How to execute a remote command over ssh with arguments?

In my .bashrc I define a function which I can use on the command line later: function mycommand() { ssh [email protected] cd testdir;./test.sh "$1" } When using this command, just the cd comma..

Change tab bar item selected color in a storyboard

I want to change my tab bar items to be pink when selected instead of the default blue. How can i accomplish this using the storyboard editor in Xcode 6? Here are my current setting which are not wo..

macro run-time error '9': subscript out of range

I found a macro on the web to protect a worksheet with a password. It works fine, but when I save the file I get the message: run-time error '9': subscription out of range. I have never programmed ..

How to save a PNG image server-side, from a base64 data string

I'm using Nihilogic's "Canvas2Image" JavaScript tool to convert canvas drawings to PNG images. What I need now is to turn those base64 strings that this tool generates, into actual PNG files on the s..

Why does SSL handshake give 'Could not generate DH keypair' exception?

When I make an SSL connection with some IRC servers (but not others - presumably due to the server's preferred encryption method) I get the following exception: Caused by: java.lang.RuntimeException:..

how to loop through each row of dataFrame in pyspark

E.g sqlContext = SQLContext(sc) sample=sqlContext.sql("select Name ,age ,city from user") sample.show() The above statement print entire table on terminal but i want to access each row in that tab..

What is the difference between a mutable and immutable string in C#?

What is the difference between a mutable and immutable string in C#?..

Is multiplication and division using shift operators in C actually faster?

Multiplication and division can be achieved using bit operators, for example i*2 = i<<1 i*3 = (i<<1) + i; i*10 = (i<<3) + (i<<1) and so on. Is it actually faster to use say..

How to see JavaDoc in IntelliJ IDEA?

I just switched from Eclipse to IntelliJ. IntelliJ lacks one feature from Eclipse - when you put your mouse over a method, Eclipse shows javadoc info. I think the way to show it is to use a shortcut..

Convert int to string?

How can I convert an int datatype into a string datatype in C#?..

multiple where condition codeigniter

How can I convert this query to active record? "UPDATE table_user SET email = '$email', last_ip = '$last_ip' where username = '$username' and status = '$status'"; I tried to convert the query a..

XML element with attribute and content using JAXB

How can I generate the following XML using JAXB? <sport type="" gender=""> sport description </sport> ..

isPrime Function for Python Language

So I was able to solve this problem with a little bit of help from the internet and this is what I got: def isPrime(n): for i in range(2,int(n**0.5)+1): if n%i==0: return False..

Show/hide image with JavaScript

I have an HTML page with an image that I set to be invisible by CSS visibility: hidden. I want to make a link called "Show image", so that when I click on it, the image appears. Now, I don't know ho..

span with onclick event inside a tag

Sample code <a href="page" style="text-decoration:none;display:block;"> <span onclick="hide()">Hide me</span> </a> Since the a tag is over the span is not possible to cl..

Trying Gradle build - "Task 'build' not found in root project"

I just started to read "Pro Spring MVC with web flow" and it comes with a code sample that I want to follow. What I want - I want to build the applications as it's done in the book, using Gradle Wh..

how to stop a loop arduino

I have this loop, how would I end the loop? void loop() { // read the pushbutton input pin: a ++; Serial.println(a); analogWrite(speakerOut, NULL); if(a > 50..

Plotting with C#

C# seems to show some promise for scientific computing, but I found very little about one plotting 2D graphs, which is very important both for science student and scientists. Is there a reliable, fre..

Oracle: is there a tool to trace queries, like Profiler for sql server?

i work with sql server, but i must migrate to an application with Oracle DB. for trace my application queries, in Sql Server i use wonderful Profiler tool. is there something of equivalent for Oracle?..

How can I redirect a php page to another php page?

Possible Duplicate: How to redirect users to another page? I'm a beginner in the programming field....I want to redirect a php page to another one..How is it possible in the most easiest way? My co..

SQL: Two select statements in one query

I want to select information from two SQL tables within one query, the information is unrelated though, so no potential joints exist. An example could be the following setup. tblMadrid id | name..

Python creating a dictionary of lists

I want to create a dictionary whose values are lists. For example: { 1: ['1'], 2: ['1','2'], 3: ['2'] } If I do: d = dict() a = ['1', '2'] for i in a: for j in range(int(i), int(i) + 2..

How to scroll to an element inside a div?

I have a scrolled div and I want to have an event when I click on it, it will force this div to scroll to view an element inside. I wrote its JavasSript like this: document.getElementById(chr).scrollI..

How to disable spring security for particular url

I am using stateless spring security,but in case of signup i want to disable spring security.I disabled using antMatchers("/api/v1/signup").permitAll(). but it is not working,i am getting error b..

SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Name or service not known

I download from https://github.com/luciddreamz/laravel Laravel for openshift then upload over my repository over github. This code for connect to database not work. The problem is that load variable f..

What are named pipes?

What are they and how do they work? Context happens to be SQL Server..

Find the greatest number in a list of numbers

Is there any easy way or function to determine the greatest number in a python list? I could just code it, as I only have three numbers, however it would make the code a lot less redundant if I could ..

getActionBar() returns null

I'm having an odd problem. I am making an app with targetsdk 13. In my main activity's onCreate method i call getActionBar() to setup my actionbar. This works fine when running on the Android 3.2 em..

Python matplotlib multiple bars

How to plot multiple bars in matplotlib, when I tried to call the bar function multiple times, they overlap and as seen the below figure the highest value red can be seen only. How can I plot the mult..

Bootstrap modal in React.js

I need to open a Bootstrap Modal from clicking on a button in a Bootstrap navbar and other places (to show data for a component instance, ie. providing "editing" functionality), but I don't know how t..

How do I pass command line arguments to a Node.js program?

I have a web server written in Node.js and I would like to launch with a specific folder. I'm not sure how to access arguments in JavaScript. I'm running node like this: $ node server.js folder her..

Error: Cannot find module 'webpack'

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