SyntaxFix

Examples On Programing Languages

How do I create a Bash alias?

 I'm on OSX and I need to put something like this, alias blah="/usr/bin/blah" in a config file but I don't know where the config file is. ...

How to create a Java / Maven project that works in Visual Studio Code?

 I'm trying to create a maven project - so that I can compile Java files in the root folder and output the class files in another folder. I've already downloaded mvn. I'm trying to integrate with VS Code. My goal is to edit the java files in VS Code...

How does Facebook Sharer select Images and other metadata when sharing my URL?

 When using Facebook Sharer, Facebook will offer the user the option of using 1 of a few images pulled from the source as a preview for their link. How are these images selected, and how can I ensure that any particular image on my page is always incl...

What does DIM stand for in Visual Basic and BASIC?

 What does DIM stand for in Visual Basic? ...

An unhandled exception of type 'System.TypeInitializationException' occurred in EntityFramework.dll

 I was trying to learn Entity Framework and SQLite using this tutorial. However, I get an error. The error thrown is: An unhandled exception of type 'System.TypeInitializationException' occurred in EntityFramework.dll Additional information:...

post checkbox value

 I want to post values of check boxes on booking.php page. There are many checkboxes on the page but I don't know how to post on booking.php page. <form name="booking.php" method="post"> <label for="tour" class="tour-label">Add to ...

tar: add all files and directories in current directory INCLUDING .svn and so on

 I try to tar.gz a directory and use tar -czf workspace.tar.gz * The resulting tar includes .svn directories in subdirs but NOT in the current directory (as * gets expanded to only 'visible' files before it is passed to tar I tried to tar -czf w...

How do I get only directories using Get-ChildItem?

 I'm using PowerShell 2.0 and I want to pipe out all the subdirectories of a certain path. The following command outputs all files and directories, but I can't figure out how to filter out the files. Get-ChildItem c:\mypath -Recurse I've tried usin...

How to change a text with jQuery

 I have an h1 with id of toptitle that is dynamically created, and I am not able to change the HTML. It will have a different title depends on a page. Now when it is Profile, I want to change it to New word with jQuery. <h1 id="toptitle">Profil...

How to get the difference between two dictionaries in Python?

 I have two dictionaries. I need to find the difference between the two which should give me both key and value. I have searched and found some addons/packages like datadiff, dictdiff-master but when I try it in Python 2.7 it says no such module defi...

How can I generate a self-signed certificate with SubjectAltName using OpenSSL?

 I am trying to generate a self-signed certificate with OpenSSL with SubjectAltName in it.While I am generating the csr for the certificate, my guess is I have to use v3 extensions of OpenSSL x509. I am using : openssl req -new -x509 -v3 -key private...

Using Ansible set_fact to create a dictionary from register results

 In Ansible I've used register to save the results of a task in the variable people. Omitting the stuff I don't need, it has this structure: { "results": [ { "item": { "name": "Bob" }, "...

Write HTML file using Java

 I want my Java application to write HTML code in a file. Right now, I am hard coding HTML tags using java.io.BufferedWriter class. For Example: BufferedWriter bw = new BufferedWriter(new FileWriter(file)); bw.write("<html><head><title...

What is the purpose of the "role" attribute in HTML?

 I keep seeing role attributes in some people's work. I use it too, but I'm not sure about its effect. For example: <header id="header" role="banner"> Header stuff in here </header> Or: <section id="facebook" role="contentinfo"...

Using global variables between files?

 I'm bit confused about how the global variables work. I have a large project, with around 50 files, and I need to define global variables for all those files. What I did was define them in my projects main.py file, as following: # ../myproject/main...

What is a good practice to check if an environmental variable exists or not?

 I want to check my environment for the existence of a variable, say "FOO", in Python. For this purpose, I am using the os standard library. After reading the library's documentation, I have figured out 2 ways to achieve my goal: Method 1: if "FOO...

What does "opt" mean (as in the "opt" directory)? Is it an abbreviation?

 What does "opt" mean (as in the "opt" directory)? I commonly see this directory in Unix systems with development tools inside. Is it an abbreviation?...

How to initialize a struct in accordance with C programming language standards

 I want to initialize a struct element, split in declaration and initialization. This is what I have: typedef struct MY_TYPE { bool flag; short int value; double stuff; } MY_TYPE; void function(void) { MY_TYPE a; ... a = { true, 15, 0.12...

Aligning a float:left div to center?

 I want to have a group of images display horizontally across the page. Each image has a few link below it so I need to put a container around each image/link-group. The closest I have gotten to what I want is putting them in divs that float:left. Th...

Bootstrap 4 img-circle class not working

 I'm writing a website in HTML5 and Bootstrap 4 and I'm trying to turn a square image into a circle. In Bootstrap 3 this was easily do-able with .img-circle, but now I can't seem to get it to work and I can't find any answers online. Has Bootstrap dro...

What is the format for the PostgreSQL connection string / URL?

 What is the format for the PostgreSQL connection string (URL postgres://...) when the host is not the localhost?...

Single line sftp from terminal

 Several times throughout the day, I may be running a test where I need to look through a log file on a remote server. I've gotten used to using my terminal to sftp into the remote server and pull the desired log file down to /tmp on my local machine....

How to easily map c++ enums to strings

 I have a bunch of enum types in some library header files that I'm using, and I want to have a way of converting enum values to user strings - and vice-versa. RTTI won't do it for me, because the 'user strings' need to be a bit more readable than t...

How can multiple rows be concatenated into one in Oracle without creating a stored procedure?

 How can I achieve the following in oracle without creating a stored procedure? Data Set: question_id element_id 1 7 1 8 2 9 3 10 3 11 3 12 Desired Result: question_...

Change cursor to hand when mouse goes over a row in table

 How do I change the cursor pointer to hand when my mouse goes over a <tr> in a <table> <table class="sortable" border-style:> <tr> <th class="tname">Name</th><th class="tage">Age</th> </tr&g...

Determine version of Entity Framework I am using?

 I believe there are two versions 1 and 2? And version 2 is referred to as Entity Framework 4.0? How can I tell what version is being used in an application? This is in my web.config does this mean I am using version 2? <add assembly="System.Da...

What is a web service endpoint?

 Let's say my web service is located at http://localhost:8080/foo/mywebservice and my WSDL is at http://localhost:8080/foo/mywebservice?wsdl. Is http://localhost:8080/foo/mywebservice an endpoint, i.e., is it the same as the URI of my web service or ...

Define a fixed-size list in Java

 Is it possible to define a list with a fixed size that's 100? If not why isn't this available in Java?...

Hiding user input on terminal in Linux script

 I have bash script like the following: #!/bin/bash echo "Please enter your username"; read username; echo "Please enter your password"; read password; I want that when the user types the password on the terminal, it should not be displayed (or s...

Android EditText Hint

 I have set a hint for an EditText, currently the hint visibility is gone. When a user starts typing, I want to remove the hint text, when the cursor is visible in the EditText, not at the time when a user starts to type. How can I do that? <EditT...

Hide all elements with class using plain Javascript

 I normally use document.getElementById('id').style.display = 'none' to hide a single div via Javascript. Is there a similarly simple way to hide all elements belonging to the same class? I need a plain Javascript solution that does not use jQuery....

Mockito test a void method throws an exception

 I have a method with a void return type. It can also throw a number of exceptions so I'd like to test those exceptions being thrown. All attempts have failed with the same reason: The method when(T) in the type Stubber is not applicable for the a...

Use of def, val, and var in scala

 class Person(val name:String,var age:Int ) def person = new Person("Kumar",12) person.age = 20 println(person.age) These lines of code outputs 12, even though person.age=20 was successfully executed. I found that this happens because I used def in ...

App.Config Transformation for projects which are not Web Projects in Visual Studio?

 For Visual Studio 2010 Web based application we have Config Transformation features by which we can maintain multiple configuration files for different environments. But the same feature is not available for App.Config files for Windows Services/WinF...

How to put php inside JavaScript?

 I've tried (but its not working): <?php $htmlString= 'testing'; ?> <html> <body> <script type="text/javascript"> var htmlString=<?php echo $htmlString; ?>; alert(htmlString); </script> ...

String.Format not work in TypeScript

 String.Format does not work in TypeScript. Error: The property 'format' does not exist on value of type '{ prototype: String; fromCharCode(...codes: number[]): string; (value?: any): string; new(value?: any): String; }'. attributes["Title"...

Print line numbers starting at zero using awk

 Can anyone tell me how to print line numbers including zero using awk? Here is my input file stackfile2.txt when I run the below awk command I get actual_output.txt awk '{print NR,$0}' stackfile2.txt | tr " ", "," > actual_output.txt wher...

Check if application is installed - Android

 I'm trying to install apps from Google Play. I can understand that on opening the Google Play store URL, it opens the Google Play and when I press the back button, the activity resumes. Intent marketIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(...

Remove all git files from a directory?

 I have a folder under version control. I want to make a copy of it to send around, but don't want to include all the .git directories and the files underneath it. Is there a way to remove all the git files instead of manually deleting all of them?...

How to declare a global variable in JavaScript

 How can I declare a global variable in JavaScript?...

The model backing the <Database> context has changed since the database was created

 The error message : "The model backing the 'AddressBook' context has changed since the database was created. Either manually delete/update the database, or call Database.SetInitializer with an IDatabaseInitializer instance. For example, the Rec...

How to sparsely checkout only one single file from a git repository?

 How do I checkout just one file from a git repo?...

jQuery Mobile - back button

 I am developing the application using jQuery Mobile 4.1. In my app, I have two html pages like login.html and home.html. In the home.html have 3 pages. () like menupage, searchpage, resultpage. The project flow is login.html ---> home.html. In hom...

Update with two tables?

 I am trying to update table A with data from table B. I thought I could do something like: UPDATE A SET A.name = B.name WHERE A.id = B.id but alas, this does not work. Anyone have an idea of how I can do this?...

Getting request payload from POST request in Java servlet

 I have a javascript library that is sending a POST request to my Java servlet, but in the doPost method, I can't seem to get the contents of the request payload. In chrome Developer Tools, all the content is in the Request Payload section in the head...

The 'json' native gem requires installed build tools

 I have ruby 1.9.2p180 (2011-02-18) [i386-mingw32] installed on my windows 7 machine. Now I tried to install the JSON gem using the command, "gem install json" and got the following error. ERROR: Error installing JSON: The 'json' native gem requ...

What does the "$" sign mean in jQuery or JavaScript?

 Possible Duplicate: What is the meaning of “$” sign in JavaScript Now this must seem to be an easy and stupid question to ask but I must know why we use the dollar ($) symbol in jQuery and JavaScript. I always put a dollar in m...

Chrome, Javascript, window.open in new tab

 In chrome this opens in a new tab: <button onclick="window.open('newpage.html', '_blank')" /> this opens in a new window (but I'd like this to open in a new tab as well: <script language="javascript"> window.open('newpage.html', '_b...

Return generated pdf using spring MVC

 I am using Spring MVC .I have to write a service that would take input from the request body, add the data to the pdf and returns the pdf file to the browser. The pdf document is generated using itextpdf. How can I do this using Spring MVC. I have tr...

Python: how to print range a-z?

 1. Print a-n: a b c d e f g h i j k l m n 2. Every second in a-n: a c e g i k m 3. Append a-n to index of urls{hello.com/, hej.com/, ..., hallo.com/}: hello.com/a hej.com/b ... hallo.com/n...

Select all elements with a "data-xxx" attribute without using jQuery

 Using only pure JavaScript, what is the most efficient way to select all DOM elements that have a certain data- attribute (let's say data-foo). The elements may be different, for example: <p data-foo="0"></p><br/><h6 da...

How to set the From email address for mailx command?

 I am working on a KornShell (ksh) script running on a Solaris server that will send out an email when and error condition is met. I am sending the email via mailx. Question: How do I set the "From" email address on the mailx command? Current Cod...

Printing column separated by comma using Awk command line

 I have a problem here. I have to print a column in a text file using awk. However, the columns are not separated by spaces at all, only using a single comma. Looks something like this: column1,column2,column3,column4,column5,column6 How would I pr...

html select option separator

 How do you make a separator in a select tag? New Window New Tab ----------- Save Page ------------ Exit ...

LDAP Authentication using Java

 I need to do LDAP Authentication for an application. I tried the following program: import java.util.Hashtable; import javax.naming.Context; import javax.naming.NamingException; import javax.naming.ldap.InitialLdapContext; import javax.nam...

How do I pass multiple parameters into a function in PowerShell?

 If I have a function which accepts more than one string parameter, the first parameter seems to get all the data assigned to it, and remaining parameters are passed in as empty. A quick test script: Function Test([string]$arg1, [string]$arg2) { ...

How do I shutdown, restart, or log off Windows via a bat file?

 I've been using Remote Desktop Connection to get into a workstation. But in this environment, I cannot use the power options in Start Menu. I need an alternative way to shutdown or restart. How do I control my computer's power state through the comm...

java.sql.SQLException: Missing IN or OUT parameter at index:: 1

 I made some Java 1.6-Oracle11g-JDBC (using OJDBC 6) code (below). I am getting an exception - java.sql.SQLException: Missing IN or OUT parameter at index:: 1 Why is this happening and how do I fix it ? My output is- create CREATE TABLE employee(emp...

Force table column widths to always be fixed regardless of contents

 I have an html table with table-layout: fixed and a td with a set width. The column still expands to hold the contents of text that doesn't contain a space. Is there a way to fix this other than wrapping the contents of each td in a div? Example: ...

SQL Server insert if not exists best practice

 I have a Competitions results table which holds team member's names and their ranking on one hand. On the other hand I need to maintain a table of unique competitors names: CREATE TABLE Competitors (cName nvarchar(64) primary key) Now I have some...

XPath Query: get attribute href from a tag

 I want to use XPath to get the href attribute from an a-tag, but it has two occurrences within the same file. How am I getting along? I need to check IF there is an href attribute with value $street/object, I have got this code and it does not work: ...

How to use PHP to connect to sql server

 I want to use PHP to connect to sql server database. I installed xampp 1.7.0(php 5.2) and SQLSRV20. I've added the extensions in php.ini and I get this error: Warning: mssql_connect() [function.mssql-connect]: Unable to connect to server: 10.85.8...

Auto expand a textarea using jQuery

 How can I make a textarea automatically expand using jQuery? I have a textbox for explaining the agenda of the meeting, so I want to expand that textbox when my agenda's text keep growing that textbox area....

HTML Table cell background image alignment

 I need the background image of a table cell to be aligned as Top in vertical side - Right in Horizontal But it is displaying as, Center in Vertical side ; Right in Horizontal Take a look at this page: http://www.chemfluence.org.in/monetar...

Match whitespace but not newlines

 I sometimes want to match whitespace but not newline. So far I've been resorting to [ \t]. Is there a less awkward way?...

Convert an array into an ArrayList

 I'm having a lot of trouble turning an array into an ArrayList in Java. This is my array right now: Card[] hand = new Card[2]; "hand" holds an array of "Cards". How this would look like as an ArrayList?...

JavaScript blob filename without link

 How do you set the name of a blob file in JavaScript when force downloading it through window.location? function newFile(data) { var json = JSON.stringify(data); var blob = new Blob([json], {type: "octet/stream"}); var url = wi...

Download a file from HTTPS using download.file()

 I would like to read online data to R using download.file() as shown below. URL <- "https://d396qusza40orc.cloudfront.net/getdata%2Fdata%2Fss06hid.csv" download.file(URL, destfile = "./data/data.csv", method="curl") Someone suggested to me that...

CentOS: Enabling GD Support in PHP Installation

 How do I go about enabling GD Support in a CentOS Installation?...

Call web service in excel

 In a VBA module in excel 2007, is it possible to call a web service? If so, any code snippets? How would I add the web reference?...

SQL: Group by minimum value in one field while selecting distinct rows

 Here's what I'm trying to do. Let's say I have this table t: key_id | id | record_date | other_cols 1 | 18 | 2011-04-03 | x 2 | 18 | 2012-05-19 | y 3 | 18 | 2012-08-09 | z 4 | 19 | 2009-06-01 | a 5 | 19 | 2011-04-03 | b ...

How to make Twitter Bootstrap tooltips have multiple lines?

 I am currently using the below function to create text that will be displayed using Bootstrap’s tooltip plugin. How come multiline tooltips only work with <br> and not \n? I prefer that there is not any HTML in my links’ title attributes. ...

How to connect to Mysql Server inside VirtualBox Vagrant?

 I mounted a new VirtualBox Machine with Vagrant, and inside that VM I installed Mysql Server. How can I connect to that server outside the vm? I already forward the port 3306 of the Vagrantfile , but when I try to connect to the mysql server, it`s re...

Difference between classification and clustering in data mining?

 Can someone explain what the difference is between classification and clustering in data mining? If you can, please give examples of both to understand the main idea....

How to convert a PNG image to a SVG?

 How to convert a PNG image to a SVG?...

How can I check if mysql is installed on ubuntu?

 I need to check if mysql is installed on a ubuntu server. Is there a way to determine if mySql has been installed ? Thanks....

how to remove the dotted line around the clicked a element in html

 I found that if there is a a link in the page which does not link to a new page,then when user click it,there will be a dotted line around the element,it will only disappear when user click anything else in the page,how to remove this? Example: Note...

Property [title] does not exist on this collection instance

 I am following Laracasts' videos: Basic Model/Controller/View Workflow. I have a table holds contact information. CREATE TABLE `about` ( `id` int(10) UNSIGNED NOT NULL, `title` varchar(500) COLLATE utf8_unicode_ci NOT NULL, `content` text COLLATE u...

Joining 2 SQL SELECT result sets into one

 I've got 2 select statements, returning data like this: Select 1 col_a col_b Select 2 col_a col_c If I do union, I get something like col_a col_b And rows joined. What i need is getting it like this: col_a col_b col_c Joined on data i...

C# windows application Event: CLR20r3 on application start

 I created a C# application and installed it on my test box. My app works perfect on my dev box, but when I install in on a different machine it crashes in the Main(). I get the EventType: CLR20r3 here is the Event Message Problem signature: ...

how to find all indexes and their columns for tables, views and synonyms in oracle

 I jotted down the following query which will list the index name and its columns for a particular table: select b.uniqueness, a.index_name, a.table_name, a.column_name from all_ind_columns a, all_indexes b where a.index_name=b.index_name and a.ta...

jquery (or pure js) simulate enter key pressed for testing

 What the best way to simulate the user pressing "enter"? $(element).keypress() doesn't seem to allow me to pass in the actual key that was pressed. This is for unit testing. ...

How to change MySQL column definition?

 I have a mySQL table called test: create table test( locationExpect varchar(120) NOT NULL; ); I want to change the locationExpect column to: create table test( locationExpect varchar(120); ); How can it be done quickly?...

How can I make Bootstrap 4 columns all the same height?

 Disclaimer. This question was asked many times before. But since time has passed and now we are close to Bootstrap 4 release with full flexbox support, it is time for new answers for the same question. I want to create equal column height with Boots...

Java 8 Iterable.forEach() vs foreach loop

 Which of the following is better practice in Java 8? Java 8: joins.forEach(join -> mIrc.join(mSession, join)); Java 7: for (String join : joins) { mIrc.join(mSession, join); } I have lots of for loops that could be "simplified" with lam...

Export to csv in jQuery

 I am dynamically generating a div which is like : <div id='PrintDiv'> <table id="mainTable"> <tr> <td> Col1 </td> <td> ...

How to get first and last day of week in Oracle?

 I need to get the first day and the last day of the week from some strings that have the format like this: '201118' where 2011 is the year and 18 is the number of the week. Knowing the number of the week, how do I get the first and the last day of...

VARCHAR to DECIMAL

 I want to convert a varchar(max) column to decimal(10,4). When I try to use cast or convert I am getting an arithmetic overflow exception. The issue is that the data stored in the varchar column may contain different precisions and different scales...

how to sort order of LEFT JOIN in SQL query?

 OK I tried googling for an answer like crazy, but I couldn't resolve this, so I hope someone will be able to help. Let's say I have a table of users, very simple table: id | userName 3 Michael 4 Mike 5 George and I have another table of ...

How to test if string exists in file with Bash?

 I have a file that contains directory names: my_list.txt : /tmp /var/tmp I'd like to check in Bash before I'll add a directory name if that name already exists in the file....

RecyclerView - How to smooth scroll to top of item on a certain position?

 On a RecyclerView, I am able to suddenly scroll to the top of a selected item by using: ((LinearLayoutManager) recyclerView.getLayoutManager()).scrollToPositionWithOffset(position, 0); However, this abruptly moves the item to the top position. I w...

Iterating through struct fieldnames in MATLAB

 My question is easily summarized as: "Why does the following not work?" teststruct = struct('a',3,'b',5,'c',9) fields = fieldnames(teststruct) for i=1:numel(fields) fields(i) teststruct.(fields(i)) end output: ans = 'a' ??? Argument to dyn...

Accessing JPEG EXIF rotation data in JavaScript on the client side

 I'd like to rotate photos based on their original rotation, as set by the camera in JPEG EXIF image data. The trick is that all this should happen in the browser, using JavaScript and <canvas>. How could JavaScript access JPEG, a local file AP...

How do I use PHP namespaces with autoload?

 I get this error when I try to use autoload and namespaces: Fatal error: Class 'Class1' not found in /usr/local/www/apache22/data/public/php5.3/test.php on line 10 Can anyone tell me what I am doing wrong? Here is my code: Class1.php: <?p...

How can I reload .emacs after changing it?

 How can I get Emacs to reload all my definitions that I have updated in .emacs without restarting Emacs?...

How to create a JQuery Clock / Timer

 I have a simple quiz application and I want display a nice timer / clock at the top of the page which shows the user how long they've been going for. (If I could somehow show them a timer for Total Quiz Time and also a second one for This Question Ti...

Getting index value on razor foreach

 I'm iterating a List<T> in a razor foreach loop in my view which renders a partial. In the partial I'm rendering a single record for which I want to have 4 in a row in my view. I have a css class for the two end columns so need to determine in ...

How do I list all remote branches in Git 1.7+?

 I've tried git branch -r, but that only lists remote branches that I've tracked locally. How do I find the list of those that I haven't? (It doesn't matter to me whether the command lists all remote branches or only those that are untracked.)...

PHP Curl UTF-8 Charset

 I have an php script which calls another web page and writes all the html of the page and everything goes ok however there is a charset problem. My php file encoding is utf-8 and all other php files work ok (that means there is no problem with server...

Java how to replace 2 or more spaces with single space in string and delete leading and trailing spaces

 Looking for quick, simple way in Java to change this string " hello there " to something that looks like this "hello there" where I replace all those multiple spaces with a single space, except I also want the one or more spaces at the b...

Passing functions with arguments to another function in Python?

 Is it possible to pass functions with arguments to another function in Python? Say for something like: def perform(function): return function() But the functions to be passed will have arguments like: action1() action2(p) action3(p,r) ...

passing object by reference in C++

 The usual way to pass a variable by reference in C++(also C) is as follows: void _someFunction(dataType *name){ // dataType e.g int,char,float etc. /**** definition */ } int main(){ dataType v; _somefunction(&v); //address of variable ...

Update R using RStudio

 How can I update R via RStudio?...

ORACLE and TRIGGERS (inserted, updated, deleted)

 I would like to use a trigger on a table which will be fired every time a row is inserted, updated, or deleted. I wrote something like this: CREATE or REPLACE TRIGGER test001 AFTER INSERT OR DELETE OR UPDATE ON tabletest001 REFERENCING OLD AS o...

Changing font size and direction of axes text in ggplot2

 I am plotting a graph with a categorical variable on the x axis and a numerical variable on the y axis. For the x axis, given that there are many data points, the default text formatting causes the label for each tick mark to overlap with other labe...

What is the best way to generate a unique and short file name in Java

 I don't necessarily want to use UUIDs since they are fairly long. The file just needs to be unique within its directory. One thought which comes to mind is to use File.createTempFile(String prefix, String suffix), but that seems wrong because the f...

CSS full screen div with text in the middle

 I have a css class defined so I can make a div to use all the browser's viewport, the rule is the following: .fullscreenDiv { background-color: #e8e8e8; width: 100%; height: auto; bottom: 0px; top: 0px; left: 0; position:...

How to add subject alernative name to ssl certs?

 I'm using openssl to create self-signed certs. I'm getting this error with the certs I generated: javax.net.ssl.SSLHandshakeException: java.security.cert.CertificateException: No subject alternative names present Does anyone know how to sp...

How to get the indexpath.row when an element is activated?

 I have a tableview with buttons and I want to use the indexpath.row when one of them is tapped. This is what I currently have, but it always is 0 var point = Int() func buttonPressed(sender: AnyObject) { let pointInTable: CGPoint = sende...

Set initially selected item in Select list in Angular2

 I've managed to get a Select list to bind with my model for the purpose of saving, but I cannot work out how to make Angular2 automatically select the correct option on the Select list if I'm providing editing functionality. In other words, if I'm ed...

Zoom to fit: PDF Embedded in HTML

 I am embedding a local pdf file into a simple webpage and I am looking to set the initial zoom to fit to the object size. Here is what I tried but it is not affecting the zoom. <embed src="filename.pdf?zoom=50" width="575" height="500"> doe...

How to disable HTML button using JavaScript?

 I’ve read that you can disable (make physically unclickable) an HTML button simply by appending disable to its tag, but not as an attribute, as follows: <input type="button" name=myButton value="disable" disabled> Since this setting is not...

jQuery $.ajax(), $.post sending "OPTIONS" as REQUEST_METHOD in Firefox

 Having trouble with what I thought was a relatively simple jQuery plugin... The plugin should fetch data from a php script via ajax to add options to a <select>. The ajax request is pretty generic: $.ajax({ url: o.url, type: 'post', co...

How to split a string into an array in Bash?

 In a Bash script, I would like to split a line into pieces and store them in an array. For example, given the line: Paris, France, Europe I would like to have the resulting array to look like so: array[0] = Paris array[1] = France array[2] = Europe ...

npm WARN enoent ENOENT: no such file or directory, open 'C:\Users\Nuwanst\package.json'

 I just want to install socket.io to my project which is located on 3.chat folder. But when I run following command it shows following Warnings.And its not created a node_modules directory inside my project folder. How to fix this? C:\Users\Nuwanst\D...

How do I center text horizontally and vertically in a TextView?

 How do I center the text horizontally and vertically in a TextView, so that it appears exactly in the middle of the TextView in Android?...

Java random numbers using a seed

 This is my code to generate random numbers using a seed as an argument: double randomGenerator(long seed) { Random generator = new Random(seed); double num = generator.nextDouble() * (0.5); return num; } Every time I give a seed and t...

Search for string and get count in vi editor

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Access Form - Syntax error (missing operator) in query expression

 I am receiving a syntax error in a form that I have created over a query. I created the form to restrict access to changing records. While trying to set filters on the form, I receive syntax errors for all attributes I try to filter on. I believe ...

svn over HTTP proxy

 I'm on laptop (Ubuntu) with a network that use HTTP proxy (only http connections allowed). When I use svn up for url like 'http://.....' everything is cool (google chrome repository works perfect), but right now I need to svn up from server with 'svn...

How to set div's height in css and html

 I'm using Twitter Bootstrap. I wrote in my html: <div style="height:100px;" class="span12"> asdfashdjkfhaskjdf </div> Why the height is not 100px when I open that page? For posterity, the original code was : <div height="100px...

How to label scatterplot points by name?

 I am trying to figure out how to get labels to show on either Google sheets, Excel, or Numbers. I have information that looks like this name|x_val|y_val ---------------- a | 1| 1 b | 2| 4 c | 1| 2 Then I would want my fina...

Convert hex color value ( #ffffff ) to integer value

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Import existing Gradle Git project into Eclipse

 I've installed eclipse gradle plugin from here http://kaczanowscy.pl/tomek/2010-03/gradle-ide-integration-eclipse-plugin Is there a simple way to import into eclipse gradle project using gui, not doing stuff described here: http://gradle.org/docs...

Uncaught (in promise) TypeError: Failed to fetch and Cors error

 having a problem with getting data back from database. I am trying my best to explain the problem. 1.If I leave "mode":"no-cors" inside the code below, then I can get data back from server with Postman, but not with from my own server. Thinking it h...

How to close TCP and UDP ports via windows command line

 Does somebody knows how to close a TCP or UDP socket for a single connection via windows command line? Googling about this, I saw some people asking the same thing. But the answers looked like a manual page of netstat or netsh commands focusing on h...

StringIO in Python3

 I am using Python 3.2.1 and I can't import the StringIO module. I use io.StringIO and it works, but I can't use it with numpy's genfromtxt like this: x="1 3\n 4.5 8" numpy.genfromtxt(io.StringIO(x)) I get the following error: TypeError: ...

Is there an equivalent to the SUBSTRING function in MS Access SQL?

 I want to do something like this within an MS Access query, but SUBSTRING is an undefined function. SELECT DISTINCT SUBSTRING(LastName, 1, 1) FROM Authors; ...

Could not connect to SMTP host: smtp.gmail.com, port: 465, response: -1

 while sending mail I am getting this error java.lang.RuntimeException: javax.mail.SendFailedException: Sending failed; nested exception is: class javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 465, r...

java.lang.ClassNotFoundException:com.mysql.jdbc.Driver

 I'm getting the exception java.lang.ClassNotFoundException when I am trying to run my code, My Code try { Class.forName("com.mysql.jdbc.Driver"); Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/simple", ...

What is the correct syntax of ng-include?

 I’m trying to include an HTML snippet inside of an ng-repeat, but I can’t get the include to work. It seems the current syntax of ng-include is different than what it was previously: I see many examples using <div ng-include src="path/file.ht...

MySQL: Selecting multiple fields into multiple variables in a stored procedure

 Can I SELECT multiple columns into multiple variables within the same select query in MySQL? For example: DECLARE iId INT(20); DECLARE dCreate DATETIME; SELECT Id INTO iId, dateCreated INTO dCreate FROM products WHERE pName=iName; What is the ...

How to use && in EL boolean expressions in Facelets?

 I am having a little trouble figuring out how to do and's on EL expressions in Facelets. So basically I have: <h:outputText id="Prompt" value="Fobar" rendered="#{beanA.prompt == true && beanB.currentBase !=null}" /> But I ke...

How can I show figures separately in matplotlib?

 Say that I have two figures in matplotlib, with one plot per figure: import matplotlib.pyplot as plt f1 = plt.figure() plt.plot(range(0,10)) f2 = plt.figure() plt.plot(range(10,20)) Then I show both in one shot plt.show() Is there a way to sho...

How to finish current activity in Android

 I have an Android application. I am making a loading screen with a progress bar. I entered a delay in the onCreate method. When the timer finishes, I want to finish the current activity and start a new one. It just gives me an exception when it...

How to grep a string in a directory and all its subdirectories?

 How to grep a string or a text in a directory and all its subdirectories'files in LINUX ??...

Android Studio Google JAR file causing GC overhead limit exceeded error

 I am using Android Studio on OS X. I am getting this error message: FAILURE: Build failed with an exception. What went wrong: Execution failed for task ':app:preDexDebug'. com.android.ide.common.internal.LoggedErrorException: Fai...

How to check if Thread finished execution

 I have following problem: I want to check (C#) if a thread has finished execution, i.e. if the thread method has returned. What I do now is call Thread.Join(1), but this gives a 1 ms delay. Is there any way to simply check if a thread has finished. ...

Find duplicate records in MySQL

 I want to pull out duplicate records in a MySQL Database. This can be done with: SELECT address, count(id) as cnt FROM list GROUP BY address HAVING cnt > 1 Which results in: 100 MAIN ST 2 I would like to pull it so that it shows each row...

jQuery override default validation error message display (Css) Popup/Tooltip like

 I'm trying to over ride the default error message label with a div instead of a label. I have looked at this post as well and get how to do it but my limitations with CSS are haunting me. How can I display this like some of these examples: Example #...

Python BeautifulSoup extract text between element

 I try to extract "THIS IS MY TEXT" from the following HTML: <html> <body> <table> <td class="MYCLASS"> <!-- a comment --> <a hef="xy">Text</a> <p>something</p> THIS IS ...

MySQL Query GROUP BY day / month / year

 Is it possible to make a simple query to count how many records I have in a determined period of time like a year, month, or day, having a TIMESTAMP field, like: SELECT COUNT(id) FROM stats WHERE record_date.YEAR = 2009 GROUP BY record_date.YEAR ...

Can an ASP.NET MVC controller return an Image?

 Can I create a Controller that simply returns an image asset? I would like to route this logic through a controller, whenever a URL such as the following is requested: www.mywebsite.com/resource/image/topbanner The controller will look up topbann...

doGet and doPost in Servlets

 I've developed an HTML page that sends information to a Servlet. In the Servlet, I am using the methods doGet() and doPost(): public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException { String id ...

Getting error: ISO C++ forbids declaration of with no type

 I'm getting the following errors: ISO C++ forbids declaration of ttTreeInsert with no type ISO C++ forbids declaration of ttTreeDelete with no type ISO C++ forbids declaration of ttTreePrint with no type prototype for int ttTree::ttTreePrint() does ...

How to import an existing directory into Eclipse?

 I am on a mac, but I don't think it will make a difference. I have a directory that I want to fully import/add into Eclipse. What I did is this: Right click import General → Existing Projects into Workspace Then when I click browse for eith...

Use Invoke-WebRequest with a username and password for basic authentication on the GitHub API

 With cURL, we can pass a username with an HTTP web request as follows: $ curl -u <your_username> https://api.github.com/user The -u flag accepts a username for authentication, and then cURL will request the password. The cURL example is for...

In Powershell what is the idiomatic way of converting a string to an int?

 The only method I have found is a direct cast: > $numberAsString = "10" > [int]$numberAsString 10 Is this the standard approach in Powershell? Is it expected that a test will be done before to ensure that the conversion will succeed and if s...

Regex for Comma delimited list

 What is the regular expression to validate a comma delimited list like this one: 12365, 45236, 458, 1, 99996332, ...... ...

How can I return the current action in an ASP.NET MVC view?

 I wanted to set a CSS class in my master page, which depends on the current controller and action. I can get to the current controller via ViewContext.Controller.GetType().Name, but how do I get the current action (e.g. Index, Show etc.)?...

how to make a specific text on TextView BOLD

 I don't know how to make a specific text on TextView become BOLD. its like this txtResult.setText(id+" "+name); I want the output to be like this: 1111 neil id and name are variables that I have retrieved the value from database, and I want...

How to add image in a TextView text?

 I've searched around on Google and came across this site where I found a question similar to mine in which how to include a image in a TextView text, for example "hello my name is [image]", and the answer was this: ImageSpan is = new ImageSpan(conte...

Array to Collection: Optimized code

 Is there a better way of achieving this? public static List<String> toList(String[] array) { List<String> list = new ArrayList(array.length); for(int i=0; i<array.length; i++) list.add(array[i]); return list; } ...

How to check if a radiobutton is checked in a radiogroup in Android?

 I need to set validation that user must fill / select all details in a page. If any fields are empty wanna show Toast message to fill. Now I need set validation for RadioButton in the RadioGroup. I tried this code but didn't work properly. Suggest me...

programming a servo thru a barometer

 i have a script which gets the air pressure from a website. and i wrote this function which says if the pressure gets different value if it rains or sunny weather or else now i have a servo which should change the angle depending on each value. We...

Bootstrap: wider input field

 How can I make the input field wider than the default in Twitter's Bootstrap? I am trying to create a wider search form in the hero-unit class from the example. ...

Page vs Window in WPF?

 What is the difference between a Page and a Window in WPF when you are adding a new file in the Solution Explorer?...

Add space between <li> elements

 I have a nav-menu on which it seems that I can't add a space (margin: 3px;) between the <li> elements. You can see the HTML and CSS code on this jsfiddle or below. You will see that I've added a border-bottom: 2px solid #fff; to the #access...

Detect if a browser in a mobile device (iOS/Android phone/tablet) is used

 Is there a way to detect if a handheld browser is used (iOS/Android phone/tablet)? I tried this with the goal to make an element half as wide in a browser on a handheld device but it doesn't make a difference. width: 600px; @media handheld { width:...

How do I move files in node.js?

 How can I move files (like mv command shell) on node.js? Is there any method for that or should I read a file, write to a new file and remove older file?...

How can I count the occurrences of a list item?

 Given an item, how can I count its occurrences in a list in Python?...

Moveable/draggable <div>

 This is my updated and modified script, it works completely, except I would like to universalize it... observe the **** how can I make it so that I don't have to do function(e){BOX.Draggable.elemen = e.target || e.srcElement; elementDraggable(e); eve...

Warning: mysqli_connect(): (HY000/1045): Access denied for user 'username'@'localhost' (using password: YES)

 Warning: mysqli_connect(): (HY000/1045): Access denied for user 'username'@'localhost' (using password: YES) in C:\Users\xampp\htdocs\PHP_Login_Script\config.php on line 6 Warning: mysqli_real_escape_string() expects parameter 1 to be mysqli,...

Turn a number into star rating display using jQuery and CSS

 I have been looking at jquery plugin and was wondering how to adapt that plugin to turn a number (like 4.8618164) into a 4.8618164 stars filled out of 5. Basically interpreting a number <5 into stars filled in a 5-star rating system using jQuery/J...

How should I escape commas and speech marks in CSV files so they work in Excel?

 I'm generating a CSV file (delimited by commas rather than tabs). My users will most likely open the CSV file in Excel by double clicking it. My data may contain commas and speech marks, so I'm escaping those as follows. Reference, Title, Descriptio...

Declare an empty two-dimensional array in Javascript?

 I want to create a two dimensional array in Javascript where I'm going to store coordinates (x,y). I don't know yet how many pairs of coordinates I will have because they will be dynamically generated by user input. Example of pre-defined 2d array: ...

Read/write files within a Linux kernel module

 I know all the discussions about why one should not read/write files from kernel, instead how to use /proc or netlink to do that. I want to read/write anyway. I have also read Driving Me Nuts - Things You Never Should Do in the Kernel. However, the...

Download File Using Javascript/jQuery

 I have a very similar requirement specified here. I need to have the user's browser start a download manually when $('a#someID').click(); But I cannot use the window.href method, since it replaces the current page contents with the file you're tryi...

Jquery change <p> text programmatically

 EDIT: The solution was to add this to the profile page instead of the gender page. $('#profile').live( 'pageinit',function(event){ $('p#pTest').text(localStorage.getItem('gender')); }); I have a paragraph with som text in a listview that I want t...

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