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How to disable an input box using angular.js

 I am using this field for an edit view and a create view <input data-ng-model="userInf.username" class="span12 editEmail" type="text" placeholder="[email protected]" pattern="[^@]+@[^@]+\.[a-zA-Z]{2,6}" required /> in the controller I have ...

HTML forms - input type submit problem with action=URL when URL contains index.aspx

 I have a HTML form that truncates the action parameter after the "?" mark - which is NOT the desired behavior I am looking for. Here is a representative HTML snippet: <form action="http://spufalcons.com/index.aspx?tab=gymnastics&path=gym">...

Pass Javascript variable to PHP via ajax

 I am trying to pass a variable from my javascript code over to the server side PHP code. I know this must be done via an ajax call which i believe i have done correctly, however accessing the variable i pass from my ajax into my php is when i run int...

Tainted canvases may not be exported

 I want to save my canvas to a img. I have this function: function save() { document.getElementById("canvasimg").style.border = "2px solid"; var dataURL = canvas.toDataURL(); document.getElementById("canvasimg").src = dataURL; documen...

Use multiple css stylesheets in the same html page

 How would I use multiple CSS stylesheets in the same HTML page where both stylesheets have a banner class, for instance. How do you specify which class you are referring to?...

Why are C# 4 optional parameters defined on interface not enforced on implementing class?

 I noticed that with the optional parameters in C# 4 if you specify an optional parameter on an interface you don,t have to make that parameter optional on any implementing class: public interface MyInterface { void TestMethod(bool flag = false)...

Can we have functions inside functions in C++?

 I mean something like: int main() { void a() { // code } a(); return 0; } ...

How to run a Command Prompt command with Visual Basic code?

 I'm trying to code something in Visual Basic, more specifically Visual Studio 2010. I want, with a button click, my program to execute a command. Is that possible? ...

Set ImageView width and height programmatically?

 How can I set an ImageView's width and height programmatically?...

MySQL IF NOT NULL, then display 1, else display 0

 I'm working with a little display complication here. I'm sure there's an IF/ELSE capability I'm just overlooking. I have 2 tables I'm querying (customers, addresses). The first has the main record, but the second may or may not have a record to LE...

Ping with timestamp on Windows CLI

 On the Windows command prompt cmd, I use ping -t to 10.21.11.81 Reply from 10.21.11.81: bytes=32 time=3889ms TTL=238 Reply from 10.21.11.81: bytes=32 time=3738ms TTL=238 Reply from 10.21.11.81: bytes=32 time=3379ms TTL=238 Are there any possibilit...

Git error: src refspec master does not match any error: failed to push some refs

 I am trying to add a file to my repository on BitBucket and I am having trouble. I am using GIT and this is what I type in $ cd lis4368/assignments $ git remote $ git remote -v $ git remote rm origin and then I type this in (this is what BitBuck...

How do I assert my exception message with JUnit Test annotation?

 I have written a few JUnit tests with @Test annotation. If my test method throws a checked exception and if I want to assert the message along with the exception, is there a way to do so with JUnit @Test annotation? AFAIK, JUnit 4.7 doesn't provide t...

Check if string ends with one of the strings from a list

 What is the pythonic way of writing the following code? extensions = ['.mp3','.avi'] file_name = 'test.mp3' for extension in extensions: if file_name.endswith(extension): #do stuff I have a vague memory that the explicit declaration o...

Path of assets in CSS files in Symfony 2

 Problem I have a CSS file with some paths in it (for images, fonts, etc.. url(..)). My path structure is like this: ... +-src/ | +-MyCompany/ | +-MyBundle/ | +-Resources/ | +-assets/ | +-css/ | +-stylesheets... +-web/ | ...

How can I create directory tree in C++/Linux?

 I want an easy way to create multiple directories in C++/Linux. For example I want to save a file lola.file in the directory: /tmp/a/b/c but if the directories are not there I want them to be created automagically. A working example would be pe...

Why is "1000000000000000 in range(1000000000000001)" so fast in Python 3?

 It is my understanding that the range() function, which is actually an object type in Python 3, generates its contents on the fly, similar to a generator. This being the case, I would have expected the following line to take an inordinate amount of...

Changing the width of Bootstrap popover

 I am designing a page using Bootstrap 3. I am trying to use a popover with placement: right on an input element. The new Bootstrap ensures that if you use form-control you basically have a full-width input element. The HTML code looks something like...

Bytes of a string in Java

 In Java, if I have a String x, how can I calculate the number of bytes in that string?...

How to control size of list-style-type disc in CSS?

 My HTML first: <ul class="moreLinks" > <div>More from Travelandleisure.com</div> <li><a rel="nofollow" href="">xyz1</a></li> <li><a rel="nofollow" href="">xyz1</a></li&g...

Change priorityQueue to max priorityqueue

 I have priority queue in Java of Integers: PriorityQueue<Integer> pq= new PriorityQueue<Integer>(); When I call pq.poll() I get the minimum element. Question: how to change the code to get the maximum element?...

Exit a while loop in VBS/VBA

 Is there a method of exiting/breaking a while in VBS/VBA? Following code won't work as intended: num = 0 while (num < 10) if (status = "Fail") then exit while end if num = num+1 wend ...

How to move mouse cursor using C#?

 I want to simulate mouse movement every x seconds. For that, I'll use a timer (x seconds) and when the timer ticks I'll make the mouse movement. But, how can I make the mouse cursor move using C#?...

How to detect chrome and safari browser (webkit)

 I am trying to detect the chrome and safari browser using jquery or javascript. I thought we are not supposed to use jQuery.browser. Are there any suggestions here? Thanks a lot!...

Convert java.util.date default format to Timestamp in Java

 The default format of java.util.date is something like this "Mon May 27 11:46:15 IST 2013". How can I convert this into timestamp and calculate in seconds the difference between the same and current time? java.util.Date date= new java.util.Date(); T...

Adding IN clause List to a JPA Query

 I have built a NamedQuery that looks like this: @NamedQuery(name = "EventLog.viewDatesInclude", query = "SELECT el FROM EventLog el WHERE el.timeMark >= :dateFrom AND " + "el.timeMark <= :dateTo AND " + "el.name IN (:in...

How do I write the 'cd' command in a makefile?

 For example, I have something like this in my makefile: all: cd some_directory But when I typed make I saw only 'cd some_directory', like in the echo command....

How to resolve "Waiting for Debugger" message?

 I have HTC Comet connected to Eclipse with SDK 2.2. I do a debug build - the application does not run; though it does get installed on the device. On the device I get this message box on the Comet screen Waiting for Debugger Application HunyDew (pro...

PHP to write Tab Characters inside a file?

 How do i simply write out a file including real tabs inside? tab means real tab which is not the spaces. How to write the tab or what is the character for real tab? For example here: $chunk = "a,b,c"; file_put_contents("chunk.csv",$chunk); What c...

Difference between numeric, float and decimal in SQL Server

 What are the differences between numeric, float and decimal datatypes and which should be used in which situations? For any kind of financial transaction (e.g. for salary field), which one is preferred and why?...

Identify if a string is a number

 If I have these strings: "abc" = false "123" = true "ab2" = false Is there a command, like IsNumeric() or something else, that can identify if a string is a valid number?...

Finding longest string in array

 Is there a short way to find the longest string in a string array? Something like arr.Max(x => x.Length);?...

Check if an array is empty or exists

 When the page is loading for the first time, I need to check if there is an image in image_array and load the last image. Otherwise, I disable the preview buttons, alert the user to push new image button and create an empty array to put the images; ...

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...

Converting string to Date and DateTime

 If I have a PHP string in the format of mm-dd-YYYY (for example, 10-16-2003), how do I properly convert that to a Date and then a DateTime in the format of YYYY-mm-dd? The only reason I ask for both Date and DateTime is because I need one in one spot...

Please initialize the log4j system properly. While running web service

 Maybe it looks silly to ask this but I am confused. I referred to Configuring Log4j property but it doesn't seem to help. I have written a simple web service HelloWorld. And while running it I am getting the error something like this : log4j:WA...

Open new popup window without address bars in firefox & IE

 hope someone can help. just cannot get a new window to open in Firefox without address bars. IE works fine with below code window.open('/pageaddress.html', 'winname', directories=0,titlebar=0,toolbar=0,location=0,status=0, menubar=0,s...

How to display Woocommerce Category image?

 I use this code in PHP: $idcat = 147; $thumbnail_id = get_woocommerce_term_meta( $idcat, 'thumbnail_id', true ); $image = wp_get_attachment_url( $thumbnail_id ); echo '<img src="'.$image.'" alt="" width="762" height="365" />'; Where 147 is t...

Pandas group-by and sum

 I am using this data frame: Fruit Date Name Number Apples 10/6/2016 Bob 7 Apples 10/6/2016 Bob 8 Apples 10/6/2016 Mike 9 Apples 10/7/2016 Steve 10 Apples 10/7/2016 Bob 1 Oranges 10/7/2016 Bob 2 Oranges 10/6/2016 Tom 15 O...

Hibernate: How to fix "identifier of an instance altered from X to Y"?

 org.hibernate.HibernateException: identifier of an instance of org.cometd.hibernate.User altered from 12 to 3 in fact, my user table is really must dynamically change its value, my Java app is multithreaded. Any ideas how to fix it? ...

How to get the top position of an element?

 Is it possible to get the top position of an element using javascript/jquery ? The element is a table, if that matters....

How do check if a parameter is empty or null in Sql Server stored procedure in IF statement?

 I read this: How do I check if a Sql server string is null or empty but it not helped me in this situation. The piece of code from my stored procedure: IF (@item1 IS NOT NULL) OR (LEN(@item1) > 0) SELECT @sql = 'SELECT * FROM TEST1' ...

Change marker size in Google maps V3

 I am using this explanation of how to color a google maps marker by setting the icon using a MarkerImage, and the coloring works well. But I can't make the scaledSize argument change the size of the marker. var pinColor = 'FFFF00'; var pinI...

Functional, Declarative, and Imperative Programming

 What do the terms functional, declarative, and imperative programming mean?...

Set new id with jQuery

 "this" is a text field, "new_id" is an integer. When I apply the following snippet: $(this).attr('id', this.id + '_' + new_id); $(this).attr('name', this.name + '_' + new_id); $(this).attr('value', 'test'); the id changes, the name changes too,...

Replacing Pandas or Numpy Nan with a None to use with MysqlDB

 I am trying to write a Pandas dataframe (or can use a numpy array) to a mysql database using MysqlDB . MysqlDB doesn't seem understand 'nan' and my database throws out an error saying nan is not in the field list. I need to find a way to convert the ...

jquery fill dropdown with json data

 I have the following jQuery code. I am able to get the following data from server [{"value":"1","label":"xyz"}, {"value":"2","label":"abc"}]. How do I iterate over this and fill a select box with id=combobox $.ajax({ type: 'POST', url: "<...

Echo equivalent in PowerShell for script testing

 I would like to output variables and values out in a PowerShell script by setting up flags and seeing the data matriculate throughout the script. How would I do this? For example, what would be the PowerShell equivalent to the following PHP code...

Update label from another thread

 I use a thread writing in another class for update a label. The label is contents in Winform Main class. Scanner scanner = new Scanner(ref lblCont); scanner.ListaFile = this.listFiles; Thread trd = new Thread(new ThreadStart(scanner.automaticScan...

Android - How To Override the "Back" button so it doesn't Finish() my Activity?

 I currently have an Activity that when it gets displayed a Notification will also get displayed in the Notification bar. This is so that when the User presses home and the Activity gets pushed to the background they can get back to the Activity via ...

How to clear form after submit in Angular 2?

 I have some simple angular 2 component with template. How to clear form and all fields after submit?. I can't reload page. After set data with date.setValue('') field is stil touched. import {Component} from 'angular2/core'; import {FORM_DIRECTIVES...

How to navigate through textfields (Next / Done Buttons)

 How can I navigate through all my text fields with the "Next" Button on the iPhone Keyboard? The last text field should close the Keyboard. I've setup the IB the Buttons (Next / Done) but now I'm stuck. I implemented the textFieldShouldReturn acti...

How to handle query parameters in angular 2

 In my routable component I have @RouteConfig { {path: '/login', name: 'Login', component: LoginComponent} } But how do I get the query params if I go to app_url/login?token=1234?...

Excel Validation Drop Down list using VBA

 I have an array of values. I want to show those values in Excel Cell as drop down list using VBA. Here is my code. It shows "Type Mismatch Error!" Dim xlValidateList(6) As Integer xlValidateList(1) = 1 xlValidateList(2) = 2 xlValidateList(3) = 3 xl...

jQuery pass more parameters into callback

 Is there a way to pass more data into a callback function in jQuery? I have two functions and I want the callback to the $.post, for example, to pass in both the resulting data of the AJAX call, as well as a few custom arguments function clicked() ...

What is a elegant way in Ruby to tell if a variable is a Hash or an Array?

 To check what @some_var is, I am doing a if @some_var.class.to_s == 'Hash' I am sure there is a more elegant way to check if @some_var is a Hash or an Array....

What is the difference between Python's list methods append and extend?

 What's the difference between the list methods append() and extend()?...

How to set a session variable when clicking a <a> link

 I have the following problem... I want to set a session variable when clicking on a normal link like: <a href="home" name="home">home</a> My research seems to point out that it is not possible for PHP to catch up with the click event i...

How to get UTC time in Python?

 I've search a bunch on StackExchange for a solution but nothing does quite what I need. In JavaScript, I'm using the following to calculate UTC time since Jan 1st 1970: function UtcNow() { var now = new Date(); var utc = Date.UTC(now.getUTC...

How to retrieve Request Payload

 I'm using PHP, ExtJS and ajax store. It sends data (on create, update, destroy) not in POST or GET. In the Chrome Console I see my outgoing params as JSON in the "Request Payload" field. $_POST and $_GET are empty. How to retrieve it in PHP?...

python socket.error: [Errno 98] Address already in use

 when i setup application.py, it shows that socket.error: [Errno 98] Address already in use. Traceback (most recent call last): File "application.py", line 121, in <module> main() File "application.py", line 117, in main http_server.listen(opti...

Getting the class of the element that fired an event using JQuery

 is there anyway to get the class when click event is fired. My code as below, it only work for id but not class. _x000D_ _x000D_ $(document).ready(function() {_x000D_ $("a").click(function(event) {_x000D_ alert(event.target.id + " and " + even...

Truncate a SQLite table if it exists?

 To truncate a table in SQLite I need to use this syntax: DELETE FROM someTable But how do I truncate the table only if it exists? Unfortunately this throws an error: DELETE FROM someTable IF EXISTS This doesn't work either: DELETE IF EXISTS F...

How to declare std::unique_ptr and what is the use of it?

 I try to understand how std::unique_ptr works and for that I found this document. The author starts from the following example: #include <utility> //declarations of unique_ptr using std::unique_ptr; // default construction unique_ptr<int>...

How to compare two colors for similarity/difference

 I want to design a program that can help me assess between 5 pre-defined colors which one is more similar to a variable color, and with what percentage. The thing is that I don't know how to do that manually step by step. So it is even more difficul...

How to show hidden divs on mouseover?

 How to show a set of hidden div's onmouseover? For example : <div id="div1">Div 1 Content</div> <div id="div2">Div 2 Content</div> <div id="div3">Div 3 Content</div> All div's need to be shown onmouseover event...

String "true" and "false" to boolean

 I have a Rails application and I'm using jQuery to query my search view in the background. There are fields q (search term), start_date, end_date and internal. The internal field is a checkbox and I'm using the is(:checked) method to build the url th...

Algorithm to compare two images

 Given two different image files (in whatever format I choose), I need to write a program to predict the chance if one being the illegal copy of another. The author of the copy may do stuff like rotating, making negative, or adding trivial details (as...

How to get full path of selected file on change of <input type=‘file’> using javascript, jquery-ajax?

 How to get full path of file while selecting file using <input type=‘file’> <input type="file" id="fileUpload"> <script type="text/javascript"> function getFilePath(){ $('input[type=file]').change(function () { va...

Efficient way to Handle ResultSet in Java

 I'm using a ResultSet in Java, and am not sure how to properly close it. I'm considering using the ResultSet to construct a HashMap and then closing the ResultSet after that. Is this HashMap technique efficient, or are there more efficient ways of ha...

LINQ query on a DataTable

 I'm trying to perform a LINQ query on a DataTable object and bizarrely I am finding that performing such queries on DataTables is not straightforward. For example: var results = from myRow in myDataTable where results.Field("RowNo") == 1 select resu...

Show constraints on tables command

 I have tables that I've tried setting PK FK relationships on but I want to verify this. How can I show the PK/FK restraints? I saw this manual page, but it does not show examples and my google search was fruitless also. My database is credentialing1 ...

How to sum digits of an integer in java?

 I am having a hard time figuring out the solution to this problem. I am trying to develop a program in Java that takes a number, such as 321, and finds the sum of digits, in this case 3 + 2 + 1 = 6. I need all the digits of any three digit number to ...

Should 'using' directives be inside or outside the namespace?

 I have been running StyleCop over some C# code, and it keeps reporting that my using directives should be inside the namespace. Is there a technical reason for putting the using directives inside instead of outside the namespace?...

NPM global install "cannot find module"

 I wrote a module which I published to npm a moment ago (https://npmjs.org/package/wisp) So it installs fine from the command line: $ npm i -g wisp However, when I run it from the command line, I keep getting an error that optimist isn't installed:...

Dynamic loading of images in WPF

 I have a strange issue with WPF, I was loading images from the disk at runtime and adding them to a StackView container. However, the images were not displayed. After some debugging I found the trick, but it really doesn't make any sense. I've mad...

How do I show multiple recaptchas on a single page?

 I have 2 forms on a single page. One of the forms has a recaptcha displaying all the time. The other should display a recaptcha only after a certain event such as maxing out login attempts. So there are times when I would need 2 recaptchas to appe...

Type Checking: typeof, GetType, or is?

 I've seen many people use the following code: Type t = typeof(obj1); if (t == typeof(int)) // Some code here But I know you could also do this: if (obj1.GetType() == typeof(int)) // Some code here Or this: if (obj1 is int) // Some ...

Pass multiple arguments into std::thread

 I'm asking the <thread> library in C++11 standard. Say you have a function like: void func1(int a, int b, ObjA c, ObjB d){ //blahblah implementation } int main(int argc, char* argv[]){ std::thread(func1, /*what do do here??*/); } ...

Center/Set Zoom of Map to cover all visible Markers?

 I am setting multiple markers on my map and I can set statically the zoom levels and the center but what I want is, to cover all the markers and zoom as much as possible having all markets visible Available methods are following setZoom(zoom:numb...

How to sort an array in descending order in Ruby

 I have an array of hashes: [ { :foo => 'foo', :bar => 2 }, { :foo => 'foo', :bar => 3 }, { :foo => 'foo', :bar => 5 }, ] I am trying to sort this array in descending order according to the value of :bar in each hash. I am ...

How to load all the images from one of my folder into my web page, using Jquery/Javascript

 I have a folder named "images" in the same directory as my .js file. I want to load all the images from "images" folder into my html page using Jquery/Javascript. Since, names of images are not some successive integers, how am I supposed to load the...

Python, how to check if a result set is empty?

 I have a sql statement that returns no hits. For example, 'select * from TAB where 1 = 2'. I want to check how many rows are returned, cursor.execute(query_sql) rs = cursor.fetchall() Here I get already exception: "(0, 'No result set')" How c...

postgres default timezone

 I installed PostgreSQL 9 and the time it is showing is 1 hour behind the server time. Running Select NOW() shows: 2011-07-12 11:51:50.453842+00 The server date shows: Tue Jul 12 12:51:40 BST 2011 It is 1 hour behind but the timezone shown in phppg...

Sql Server trigger insert values from new row into another table

 I have a site using the asp.net membership schema. I'd like to set up a trigger on the aspnet_users table that inserted the user_id and the user_name of the new row into another table. How do I go about getting the values from the last insert? ...

Nested ifelse statement

 I'm still learning how to translate a SAS code into R and I get warnings. I need to understand where I'm making mistakes. What I want to do is create a variable which summarizes and differentiates 3 status of a population: mainland, overseas, foreign...

Add column with constant value to pandas dataframe

 Given a DataFrame: np.random.seed(0) df = pd.DataFrame(np.random.randn(3, 3), columns=list('ABC'), index=[1, 2, 3]) df A B C 1 1.764052 0.400157 0.978738 2 2.240893 1.867558 -0.977278 3 0.950088 -0.151357 -0.103219 ...

Check whether a string matches a regex in JS

 I want to use JavaScript (can be with jQuery) to do some client-side validation to check whether a string matches the regex: ^([a-z0-9]{5,})$ Ideally it would be an expression that returned true or false. I'm a JavaScript newbie, does match() do...

sort files by date in PHP

 I currently have an index.php file which allows me to output the list of files inside the same directory, the output shows the names then I used filemtime() function to show the date when the file was modified. my problem now is, how will I sort the ...

Adding Lombok plugin to IntelliJ project

 I'm trying to add Lombok to my Spring Boot project in IntelliJ IDEA. So far, I've added the plugin under Settings - Plugins (version 0.13.16) added compile('org.projectlombok:lombok') to my Gradle dependencies enabled annotation processing It sti...

Python, print all floats to 2 decimal places in output

 I need to output 4 different floats to two decimal places. This is what I have: print '%.2f' % var1,'kg =','%.2f' % var2,'lb =','%.2f' % var3,'gal =','%.2f' % var4,'l' Which is very unclean, and looks bad. Is there a way to make any float in that...

How to install ADB driver for any android device?

 I am an android developer. I have a new HTC Inspire 4g phone but I don't know how to install usb driver for it. This is my android_winusb.inf file: ; ; Android WinUsb driver installation. ; [Version] Signature = "$Windows NT$" Class ...

Disabling Warnings generated via _CRT_SECURE_NO_DEPRECATE

 What is the best way to disable the warnings generated via _CRT_SECURE_NO_DEPRECATE that allows them to be reinstated with ease and will work across Visual Studio versions?...

Multiple left-hand assignment with JavaScript

 var var1 = 1, var2 = 1, var3 = 1; This is equivalent to this: var var1 = var2 = var3 = 1; I'm fairly certain this is the order the variables are defined: var3, var2, var1, which would be equivalent to this: var var3 = 1, var2 = var3, va...

How to access a RowDataPacket object

 I'm currently developing a desktop application with Node-webkit. During that process I need to get some data from a local MySQL-database. The querying works fine, but I can't figure out how to access the results. I store all of them in an array that...

Sql Server string to date conversion

 I want to convert a string like this: '10/15/2008 10:06:32 PM' into the equivalent DATETIME value in Sql Server. In Oracle, I would say this: TO_DATE('10/15/2008 10:06:32 PM','MM/DD/YYYY HH:MI:SS AM') This question implies that I must parse th...

How to convert from Hex to ASCII in JavaScript?

 How to convert from Hex string to ASCII string in JavaScript? Ex: 32343630 it will be 2460 ...

How to find the users list in oracle 11g db?

 How to find out the users list, which is all created in the oracle 11g database. Is there any command to find out the users list which we can execute from the Command line interface! ...

How do I call a specific Java method on a click/submit event of a specific button in JSP?

 My Java file is: public class MyClass { public void method1() { // some code } public void method2() { //some code } public void method3() { //some code } } In my JSP page I have three HTML bu...

Access to build environment variables from a groovy script in a Jenkins build step (Windows)

 I'm using Scriptler plugin, so I can run a groovy script as a build step. My Jenkins slaves are running on windows in service mode. With scriptler, I don't need to use windows batch scripts. But I have trouble to get the environment variables in a b...

How to scroll HTML page to given anchor?

 I’d like to make the browser to scroll the page to a given anchor, just by using JavaScript. I have specified a name or id attribute in my HTML code: <a name="anchorName">..</a> or <h1 id="anchorName2">..</h1> I’d...

How do you remove duplicates from a list whilst preserving order?

 Is there a built-in that removes duplicates from list in Python, whilst preserving order? I know that I can use a set to remove duplicates, but that destroys the original order. I also know that I can roll my own like this: def uniq(input): output...

PHP & MySQL: mysqli_num_rows() expects parameter 1 to be mysqli_result, boolean given

 I'm trying to Integrate HTML Purifier http://htmlpurifier.org/ to filter my user submitted data but I get the following error below. And I was wondering how can I fix this problem? I get the following error. on line 22: mysqli_num_rows() expects pa...

Entry point for Java applications: main(), init(), or run()?

 So far I've been using public void run() {} methods to execute my code in Java. When/why might one want to use main() or init() instead of run()?...

%i or %d to print integer in C using printf()?

 I am just learning C and I have a little knowledge of Objective-C due to dabbling in iOS development, however, in Objective-C I was using NSLog(@"%i", x); to print the variable x to the console however I have been reading a few C tutorials and they a...

OS X: equivalent of Linux's wget

 How can I do an HTTP GET from a Un*x shell script on a stock OS X system? (installing third-party software is not an option, for this has to run on a lot of different systems which I don't have control on). For example if I start the Mercurial serve...

py2exe - generate single executable file

 I thought I heard that py2exe was able to do this, but I never figured it out. Has anyone successfully done this? Can I see your setup.py file, and what command line options you used? Basically I'm thinking of it giving me a single executable file...

Angular 2.0 and Modal Dialog

 I am trying to find some examples on how to do a Confirmation modal dialog in Angular 2.0. I have been using Bootstrap dialog for Angular 1.0 and unable to find any examples in the web for Angular 2.0. I also checked angular 2.0 docs with no luck. ...

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)

 The following code: Class.forName("com.mysql.jdbc.Driver"); Connection m_connection = DriverManager.getConnection("jdbc:mysql://localhost","root","root"); Throws this exception on getConnection(): java.sql.SQLException: Access denied for user 'ro...

Joining two lists together

 If I have two lists of type string (or any other type), what is a quick way of joining the two lists? The order should stay the same. Duplicates should be removed (though every item in both links are unique). I didn't find much on this when googling...

Unescape HTML entities in Javascript?

 I have some Javascript code that communicates with an XML-RPC backend. The XML-RPC returns strings of the form: <img src='myimage.jpg'> However, when I use the Javascript to insert the strings into HTML, they render literally. I don't see an...

How to store a dataframe using Pandas

 Right now I'm importing a fairly large CSV as a dataframe every time I run the script. Is there a good solution for keeping that dataframe constantly available in between runs so I don't have to spend all that time waiting for the script to run?...

Letsencrypt add domain to existing certificate

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Encrypt Password in Configuration Files?

 I have a program that reads server information from a configuration file and would like to encrypt the password in that configuration that can be read by my program and decrypted. Requirments: Encrypt plaintext password to be stored in the file De...

CSS3's border-radius property and border-collapse:collapse don't mix. How can I use border-radius to create a collapsed table with rounded corners?

 Edit - Original Title: Is there an alternative way to achieve border-collapse:collapse in CSS (in order to have a collapsed, rounded corner table)? Since it turns out that simply getting the table's borders to collapse does not solve the root proble...

Correct way to add external jars (lib/*.jar) to an IntelliJ IDEA project

 When creating a new Java project in IntelliJ IDEA, the following directories and files are created: ./projectname.iml ./projectname.ipr ./projectname.iws ./src/ I want to configure IntelliJ IDEA to include my dependency JARs in ./lib/*.jar to the ...

how to realize countifs function (excel) in R

 I have a dataset containing 100000 rows of data. I tried to do some countif operations in Excel, but it was prohibitively slow. So I am wondering if this kind of operation can be done in R? Basically, I want to do a count based on multiple conditions...

Set cellpadding and cellspacing in CSS?

 In an HTML table, the cellpadding and cellspacing can be set like this: <table cellspacing="1" cellpadding="1"> How can the same be accomplished using CSS?...

Java generating non-repeating random numbers

 I want to create a set of random numbers without duplicates in Java. For example I have an array to store 10,000 random integers from 0 to 9999. Here is what I have so far: import java.util.Random; public class Sort{ public static void main(S...

Convert ASCII number to ASCII Character in C

 In C is there a way to convert an ASCII value typed as an int into the the corresponding ASCII character as a char?...

Get human readable version of file size?

 A function to return human readable size from bytes size: >>> human_readable(2048) '2 kilobytes' >>> How to do this?...

Javascript: How to pass a function with string parameters as a parameter to another function

 I need to do something like this: <input type="button" value="click" id="mybtn" onclick="myfunction('/myController/myAction', 'myfuncionOnOK('/myController2/myAction2', 'myParameter2');', ...

What does string::npos mean in this code?

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How can I display a pdf document into a Webview?

 I want to display pdf contents on webview. Here is my code: WebView webview = new WebView(this); setContentView(webview); webview.getSettings().setJavaScriptEnabled(true); webview.loadUrl("http://www.adobe.com/devnet/acrobat/pdfs/pdf_open_paramete...

Excel - programm cells to change colour based on another cell

 I am trying to create a formula for Excel whereby a cell would change colour based on the text in the previous cell. So for example if cell B2 contains the letter X and then B3 is Y, I would like B3 to turn green. Equally, if B2 contains X and B3 co...

How to get a file or blob from an object URL?

 I am allowing the user to load images into a page via drag&drop and other methods. When an image is dropped, I'm using URL.createObjectURL to convert to an object URL to display the image. I am not revoking the url, as I do reuse it. So, when ...

REST URI convention - Singular or plural name of resource while creating it

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How to [recursively] Zip a directory in PHP?

 Directory is something like: home/ file1.html file2.html Another_Dir/ file8.html Sub_Dir/ file19.html I am using the same PHP Zip class used in PHPMyAdmin http://trac.seagullproject.org/browser/branches/0.6-bugfix/lib/other...

appending list but error 'NoneType' object has no attribute 'append'

 I have a script in which I am extracting value for every user and adding that in a list but I am getting "'NoneType' object has no attribute 'append'". My code is like last_list=[] if p.last_name==None or p.last_name=="": pass last_list=last_l...

How to add a jar in External Libraries in android studio

 I am new to Android Studio. What I need to do is add a few jar files in the External Libraries below the < JDK > folder. If anyone has knowledge of how to do this, please help me....

Convert Java Object to JsonNode in Jackson

 Is it possible to directly convert a Java Object to an JsonNode-Object? The only way I found to solve this is to convert the Java Object to String and then to JsonNode: ObjectMapper mapper = new ObjectMapper(); String json = mapper.writeValueAsStr...

How to remove leading zeros using C#

 How to remove leading zeros in strings using C#? For example in the following numbers, I would like to remove all the leading zeros. 0001234 0000001234 00001234 ...

Parse DateTime string in JavaScript

 Does anyone know how to parse date string in required format dd.mm.yyyy?...

"You may need an appropriate loader to handle this file type" with Webpack and Babel

 I am trying to use Webpack with Babel to compile ES6 assets, but I am getting the following error message: You may need an appropriate loader to handle this file type. | import React from 'react'; | /* | import { render } from 'react-dom' Here is ...

Most efficient way to concatenate strings?

 What's the most efficient way to concatenate strings?...

How to use ADB Shell when Multiple Devices are connected? Fails with "error: more than one device and emulator"

 $ adb --help -s SERIAL use device with given serial (overrides $ANDROID_SERIAL) $ adb devices List of devices attached emulator-5554 device 7f1c864e device $ adb shell -s 7f1c864e error: more than one device and emulator ...

What's the difference between HEAD^ and HEAD~ in Git?

 When I specify an ancestor commit object in Git, I'm confused between HEAD^ and HEAD~. Both have a "numbered" version like HEAD^3 and HEAD~2. They seem very similar or the same to me, but are there any differences between the tilde and the caret?...

missing private key in the distribution certificate on keychain

 I have the following problem which I could not find a solution for anywhere. Basically, we have a company developer account (not enterprise) and so in order to submit our app, I requested from our team lead to send me the distribution certificate and...

How to display image from database using php

 I am trying to display an image coming from the database and I was not able to display the image .but its showing like this user-1.jpg Please see my code can one guide me how to display the image. $sqlimage = "SELECT image FROM userdetail where `id`...

Renaming Column Names in Pandas Groupby function

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How to loop over directories in Linux?

 I am writing a script in bash on Linux and need to go through all subdirectory names in a given directory. How can I loop through these directories (and skip regular files)? For example: the given directory is /tmp/ it has the following subdirectori...

When to use Comparable and Comparator

 I have a list of objects I need to sort on a field, say Score. Without giving much thought I wrote a new class that implements Comparator, that does the task and it works. Now looking back at this, I am wondering if I should have instead have the m...

Rotating a point about another point (2D)

 I'm trying to make a card game where the cards fan out. Right now to display it Im using the Allegro API which has a function: al_draw_rotated_bitmap(OBJECT_TO_ROTATE,CENTER_X,CENTER_Y,X ,Y,DEGREES_TO_ROTATE_IN_RADIANS); so with this I can...

How to grep for contents after pattern?

 Given a file, for example: potato: 1234 apple: 5678 potato: 5432 grape: 4567 banana: 5432 sushi: 56789 I'd like to grep for all lines that start with potato: but only pipe the numbers that follow potato:. So in the above example, the output would...

Add key value pair to all objects in array

 I wanted to add a key:value parameter to all the objects in an array. eg: var arrOfObj = [{name: 'eve'},{name:'john'},{name:'jane'}]; Now I wanted to add a new parameter, isActive to all the objects so the resulting array will look like. eg: ...

Sending Arguments To Background Worker?

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"date(): It is not safe to rely on the system's timezone settings..."

 I got this error when I requested to update the PHP version from 5.2.17 to PHP 5.3.21 on the server. <div style="border:1px solid #990000;padding-left:20px;margin:0 0 10px 0;"> <h4>A PHP Error was encountered</h4> <p>Severi...

Bootstrap 4 - Inline List?

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Send XML data to webservice using php curl

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'numpy.float64' object is not iterable

 I'm trying to iterate an array of values generated with numpy.linspace: slX = numpy.linspace(obsvX, flightX, numSPts) slY = np.linspace(obsvY, flightY, numSPts) for index,point in slX: yPoint = slY[index] arcpy.AddMessage(yPoint) This cod...

SQL Delete Records within a specific Range

 This is probably a very simple question for somebody with experience, but I just wanted to know the safest way to delete a couple of hundred records in an SQL table that fall between a specific range. For example I need to delete rows with an ID bet...

Delegation: EventEmitter or Observable in Angular

 I am trying to implement something like a delegation pattern in Angular. When the user clicks on a nav-item, I would like to call a function which then emits an event which should in turn be handled by some other component listening for the event. ...

Error 5 : Access Denied when starting windows service

 I'm getting this error when I try to start a windows service I've created in C#: My Code so far: private ServiceHost host = null; public RightAccessHost() { InitializeComponent(); } protected override void OnStart(string[] args) { host ...

Converting LastLogon to DateTime format

 My objective is to get a list of users from my domain with the following info: -Display name -Country -Manager Name -Last login date I am running the following script, and everything looks good except for the LastLogon. It outputs the time into a ...

Get and set position with jQuery .offset()

 How to get and set the position of an element with the jQuery .offset method? Let's say I have a div layer1 and another layer2. How can I get the position of layer1 and set the same position to layer2?...

When to use reinterpret_cast?

 I am little confused with the applicability of reinterpret_cast vs static_cast. From what I have read the general rules are to use static cast when the types can be interpreted at compile time hence the word static. This is the cast the C++ compiler ...

CSS: How to change colour of active navigation page menu

 I'm trying to change the colour of the active or current page navigation link which is selected by the user on my website. What am I doing wrong? Thanks. So far the CSS looks like this: div.menuBar { font-family: BirchStd; font-size: 40px; ...

'method' object is not subscriptable. Don't know what's wrong

 I'm writing some code to create an unsorted list but whenever I try to insert a list using the insert method I get the 'method' object is not subscriptable error. Not sure how to fix it. Thanks. class UnsortedList: def __init__(self): se...

Service has zero application (non-infrastructure) endpoints

 I recently created a WCF service (dll) and a service host (exe). I know my WCF service is working correctly since I am able to successfully add the service to WcfTestClient. However, I seem to be running into an issue when I comes to utlizing my WC...

Can I write a CSS selector selecting elements NOT having a certain class or attribute?

 I would like to write a CSS selector rule that selects all elements that don't have a certain class. For example, given the following HTML: <html class="printable"> <body class="printable"> <h1 class="printable">Example...

How to remove last n characters from every element in the R vector

 I am very new to R, and I could not find a simple example online of how to remove the last n characters from every element of a vector (array?) I come from a Java background, so what I would like to do is to iterate over every element of a$data and...

Storing data into list with class

 I have the following class: public class EmailData { public string FirstName{ set; get; } public string LastName { set; get; } public string Location{ set; get; } } I then did the following but was not working properly: List<EmailD...

Git commit with no commit message

 How can I commit changes without specifying commit message? Why is it required by default?...

Apply style to only first level of td tags

 Is there a way to apply a Class' style to only ONE level of td tags? <style>.MyClass td {border: solid 1px red;}</style> <table class="MyClass"> <tr> <td> THIS SHOULD HAVE RED BORDERS </td> &l...

Fast check for NaN in NumPy

 I'm looking for the fastest way to check for the occurrence of NaN (np.nan) in a NumPy array X. np.isnan(X) is out of the question, since it builds a boolean array of shape X.shape, which is potentially gigantic. I tried np.nan in X, but that seems ...

How can I export tables to Excel from a webpage

 How can I export tables to Excel from a webpage. I want the export to contain all the formatting and colours....

Any way to return PHP `json_encode` with encode UTF-8 and not Unicode?

 Any way to return PHP json_encode with encode UTF-8 and not Unicode? $arr=array('a'=>'á'); echo json_encode($arr); mb_internal_encoding('UTF-8');and $arr=array_map('utf8_encode',$arr); does not fix it. Result: {"a":"\u00e1"} Expected result:...

How to compare only date components from DateTime in EF?

 I am having two date values, one already stored in the database and the other selected by the user using DatePicker. The use case is to search for a particular date from the database. The value previously entered in the database always has time comp...

How to add include path in Qt Creator?

 I have a project I'm working on in Qt creator that requires a third-party library. I want to add the headers to the include path for the project. How do I do this?...

How can I check whether a option already exist in select by JQuery

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TypeError: 'undefined' is not an object

 I have a currently fairly dysfunctional Javascript program that's been causing me problems. However, it throws one error that I just don't understand: TypeError: 'undefined' is not an object (evaluating 'sub.from.length') What I'm trying to do, as...

How do I UPDATE from a SELECT in SQL Server?

 In SQL Server, it is possible to insert rows into a table with an INSERT.. SELECT statement: INSERT INTO Table (col1, col2, col3) SELECT col1, col2, col3 FROM other_table WHERE sql = 'cool' Is it also possible to update a table with SELECT? I have...

Position a CSS background image x pixels from the right?

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Combine Multiple child rows into one row MYSQL

 Thanks in advance, I just can't seem to get it! I have two tables Ordered_Item ID | Item_Name 1 | Pizza 2 | Stromboli Ordered_Options Ordered_Item_ID | Option_Number | Value 1 43 Pepperoni 1 ...

Program to find prime numbers

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pretty-print JSON using JavaScript

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Change variable name in for loop using R

 I have a for loop: for (i in 1:10){ Ai=d+rnorm(3)} What I would like to do is have A1, A2,A3...A10 and I have the variable i in the variable name. It doesn't work this way, but I'm probably missing some small thing. How can I use the i in the for...

Batch file to delete folders older than 10 days in Windows 7

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Remove all occurrences of a value from a list?

 In Python remove() will remove the first occurrence of value in a list. How to remove all occurrences of a value from a list? This is what I have in mind: >>> remove_values_from_list([1, 2, 3, 4, 2, 2, 3], 2) [1, 3, 4, 3] ...

How to change a Git remote on Heroku

 I do not want to upload my app to the wrong domain. How can I change the git master branch on git? ...

How can I use Html.Action?

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Count if two criteria match - EXCEL formula

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How to create temp table using Create statement in SQL Server?

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CSS: stretching background image to 100% width and height of screen?

 I have an image called myImage.jpg. This is my CSS: body { background-image:url("../images/myImage.jpg"); background-repeat: no-repeat; background-size: 100% 100%; } For some reason, when I do this, the width of myImage stretches acros...

Razor View Without Layout

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ERROR: ld.so: object LD_PRELOAD cannot be preloaded: ignored

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How do I force "git pull" to overwrite local files?

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How can I create a text box for a note in markdown?

 I am writing a document in markdown. I am using the wonderful pandoc to create docx and tex files from the markdown source. I would like to have a textbox for tips and notes to readers the way programming books often do. I cannot figure out how to do...

How to customize the back button on ActionBar

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What is the difference between DBMS and RDBMS?

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Directing print output to a .txt file

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Deserialize JSON to Array or List with HTTPClient .ReadAsAsync using .NET 4.0 Task pattern

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Encode URL in JavaScript?

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Read/Write String from/to a File in Android

 I want to save a file to the internal storage by getting the text inputted from EditText. Then I want the same file to return the inputted text in String form and save it to another String which is to be used later. Here's the code: package com.omm...

C# List of objects, how do I get the sum of a property

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Convert from MySQL datetime to another format with PHP

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How to create a shortcut using PowerShell

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How do I change selected value of select2 dropdown with JqGrid?

 I'm using Oleg's select2 demo, but I am wondering whether it would be possible to change the currently selected value in the dropdown menu. For example, if the four values loaded were: "Any", "Fruit", "Vegetable", "Meat" and the dropdown list defaul...

Passing Objects By Reference or Value in C#

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Formatting text in a TextBlock

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How to use an image for the background in tkinter?

 #import statements from Tkinter import * import tkMessageBox import tkFont from PIL import ImageTk,Image Code to import image: app = Tk() app.title("Welcome") image2 =Image.open('C:\\Users\\adminp\\Desktop\\titlepage\\front.gif') image1 = ImageTk....

Node.js global proxy setting

 I was working in a corporate network behind a proxy server. In my code I can set the proxy by using the approach mentioned in this thread. But the problem is that most of the 3rd party modules do not have proxy setting and I cannot modify their code...

What is the largest TCP/IP network port number allowable for IPv4?

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Using different Web.config in development and production environment

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Using jQuery Fancybox or Lightbox to display a contact form

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Why can't I duplicate a slice with `copy()`?

 I need to make a copy of a slice in Go and reading the docs there is a copy function at my disposal. The copy built-in function copies elements from a source slice into a destination slice. (As a special case, it also will copy bytes from a ...

How to print from Flask @app.route to python console

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Javascript format date / time

 I need to change a date/time from 2014-08-20 15:30:00 to look like 08/20/2014 3:30 pm Can this be done using javascript's Date object?...

IIS URL Rewrite and Web.config

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How to exit a 'git status' list in a terminal?

 I'm new to Git and the terminal. How can I exit a listing mode generated by the git status command?...

Deprecation warning in Moment.js - Not in a recognized ISO format

 I'm getting a warning that a value provided to moment is not in a recognized ISO format. I changed my variable today with the moment function and still it doesn't work. Here's the warning error: Deprecation warning: value provided is not in a recogn...

What is the size of a pointer?

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How do I export a project in the Android studio?

 How do I export project in the Android Studio? I mean, like I used to do in Eclipse by File|Export.....

How do you read from stdin?

 I'm trying to do some of the code golf challenges, but they all require the input to be taken from stdin. How do I get that in Python?...

OSError: [Errno 8] Exec format error

 I am having hard time parsing the arguments to subprocess.Popen. I am trying to execute a script on my Unix server. The script syntax when running on shell prompt is as follows: /usr/local/bin/script hostname = <hostname> -p LONGLIST. No matte...

"Uncaught Error: [$injector:unpr]" with angular after deployment

 I have a fairly simple Angular application that runs just fine on my dev machine, but is failing with this error message (in the browser console) after I deploy it: Uncaught Error: [$injector:unpr] http://errors.angularjs.org/undefined/$injector/unp...

Multiple radio button groups in MVC 4 Razor

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Execute JavaScript code stored as a string

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Using AngularJS date filter with UTC date

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Multiple rows to one comma-separated value in Sql Server

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How to close this ssh tunnel?

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VBA Excel Provide current Date in Text box

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HQL "is null" And "!= null" on an Oracle column

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Make index.html default, but allow index.php to be visited if typed in

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How to write to files using utl_file in oracle

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how does multiplication differ for NumPy Matrix vs Array classes?

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Convert integer to binary in C#

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How to tell if JRE or JDK is installed

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How to avoid precompiled headers

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How can I get this ASP.NET MVC SelectList to work?

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