Questions Tagged with #Network tools

How to detect if multiple keys are pressed at once using JavaScript?

I'm trying to develop a JavaScript game engine and I've came across this problem: When I press SPACE the character jumps. When I press → the character moves right. The problem is that w..

How to delete a folder and all contents using a bat file in windows?

I want to delete a folder with all files and subfolders using a bat file. I have tried the following, but it is not working: @DEL D:\PHP_Projects\testproject\Release\testfolder*.* Can anybody hel..

How to remove outliers in boxplot in R?

Possible Duplicate: Changing the outlier rule in a boxplot I need to visualize my result using box-plot. x<-rnorm(10000) boxplot(x,horizontal=TRUE,axes=FALSE) How can i filter outli..

MySQL - How to select data by string length

SELECT * FROM table ORDER BY string_length(column); Is there a MySQL function to do this (of course instead of string_length)?..

Change the Theme in Jupyter Notebook?

I like dark themes. However, the default theme of Jupyter notebooks is light, and I can't find the option to change the theme/background-color. How is this done?..

What is the difference between Trap and Interrupt?

What is the difference between Trap and Interrupt? If the terminology is different for different systems, then what do they mean on x86?..

Mongoose and multiple database in single node.js project

I'm doing a Node.js project that contains sub projects. One sub project will have one Mongodb database and Mongoose will be use for wrapping and querying db. But the problem is Mongoose doesn't all..

WordPress asking for my FTP credentials to install plugins

I installed a WordPress blog in my local system. But when I try to add plugins from admin it asks for FTP access. What do I need to configure for WordPress to be able to upload without FTP?..

How to disable copy/paste from/to EditText

In my application, there is a registration screen, where i do not want the user to be able to copy/paste text into the EditText field. I have set an onLongClickListener on each EditText so that the co..

What are the "standard unambiguous date" formats for string-to-date conversion in R?

Please consider the following $ R --vanilla > as.Date("01 Jan 2000") Error in charToDate(x) : character string is not in a standard unambiguous format But that date clearly is in a standard..

How do I convert datetime.timedelta to minutes, hours in Python?

I get a start_date like this: from django.utils.timezone import utc import datetime start_date = datetime.datetime.utcnow().replace(tzinfo=utc) end_date = datetime.datetime.utcnow().replace(tzinfo=u..

PHP header(Location: ...): Force URL change in address bar

I'm currently working on a mobile site with authentication using PHP sessions with a database. I have a login page with a form that goes to server_login.php on submit. The php file then creates some s..

Page redirect after certain time PHP

There is a certain PHP function for redirecting after some time. I saw it somewhere but can't remember. It's like the gmail redirection after logging in. Please, could anyone remind me?..

How to customize an end time for a YouTube video?

I'm trying to figure out how I can specify a custom end time for an embedded YouTube video. I know that I can customize the start time by adding &start=30, but I haven't seen anything relating to ..

How to compare strings

I wanted to compare a string without actually defining one of them as a string, something like this, if (string == "add") Do I have to declare "add" as a string or is it possible to compare in a si..

How to escape apostrophe (') in MySql?

The MySQL documentation says that it should be \'. However, both scite and mysql shows that '' works. I saw that and it works. What should I do?..

Terminal Multiplexer for Microsoft Windows - Installers for GNU Screen or tmux

I am looking for a terminal multiplexer for Microsoft Windows. I was unable to locate the installers for Microsoft Windows for both tmux and GNU Screen. Currently I'm using Putty to connect to my Lin..

C#, Looping through dataset and show each record from a dataset column

In C#, I'm trying to loop through my dataset to show data from each row from a specific column. I want the get each date under the column name "TaskStart" and display it on a report, but its just sho..

Best Python IDE on Linux

Possible Duplicate: What IDE to use for Python? Can anybody suggest me good Python IDE for Linux?..

How to programmatically open the Permission Screen for a specific app on Android Marshmallow?

I have a question regarding the new Android Marshmallow release: Is it achievable to display the Permission Screen for a specific app via an Intent or something similar? It's possible to display t..

LaTeX table too wide. How to make it fit?

I just started to learn latex and now I'm trying to create a table. This is my code: \begin{table} \caption{Top Scorers} \begin{tabular}{ l l } \hline \bf Goals & \bf Players\\ \hline..

Java - Search for files in a directory

This is supposed to be simple, but I can't get it - "Write a program that searches for a particular file name in a given directory." I've found a few examples of a hardcoded filename and directory, bu..

Javascript Get Element by Id and set the value

I have a javascript function to which I pass a parameter. The parameter represents the id of an element (a hidden field) in my web page. I want to change the value of this element. function myFunc(va..

For-loop vs while loop in R

I have noticed a curious thing whilst working in R. When I have a simple program that computes squares from 1 to N implemented using for-loop and while-loop the behaviour is not the same. (I don't car..

How to set a header in an HTTP response?

I've a servlet A where I'm setting a header in the HTTP response: public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { Stri..

How can I set the background color of <option> in a <select> element?

How do you set the background color of an item in an HTML list?..

Interop type cannot be embedded

I am creating a web application on the .NET 4.0 framework (beta2) in C#. When I try to use a assembly called "ActiveHomeScriptLib", I get the following error: Interop type 'ActiveHomeScriptLib...

removing bold styling from part of a header

Is there a way to remove bold styling from part of a header? <h1>**This text should be bold**, but this text should not</h1> Is there a way to accomplish this?..

Groovy Shell warning "Could not open/create prefs root node ..."

I tried to open the Groovy Shell (groovysh) on Windows 8 and got the following output: java.util.prefs.WindowsPreferences <init> WARNING: Could not open/create prefs root node Software\JavaSoft..

Validating URL in Java

I wanted to know if there is any standard APIs in Java to validate a given URL? I want to check both if the URL string is right i.e. the given protocol is valid and then to check if a connection can b..

IIS 500.19 with 0x80070005 The requested page cannot be accessed because the related configuration data for the page is invalid error

I want to upload my own website on IIS with IIS Manager. But when I do this, I get the following error HTTP Error 500.19 - Internal Server Error The requested page cannot be accessed b..

Does .NET provide an easy way convert bytes to KB, MB, GB, etc.?

Just wondering if .NET provides a clean way to do this: int64 x = 1000000; string y = null; if (x / 1024 == 0) { y = x + " bytes"; } else if (x / (1024 * 1024) == 0) { y = string.Format("{0:n..

ImportError: No module named 'selenium'

I'm trying to write a script to check a website. It's the first time I'm using selenium. I'm trying to run the script on a OSX system. Although I checked in /Library/Python/2.7/site-packages and selen..

Common elements comparison between 2 lists

def common_elements(list1, list2): """ Return a list containing the elements which are in both list1 and list2 >>> common_elements([1,2,3,4,5,6], [3,5,7,9]) [3, 5] >&g..

How can I generate UUID in C#

I am creating an .idl file programmatically. How do I create UUIDs for the interfaces and Methods Programmatically. Can I generate the UUID programmatically?..

HRESULT: 0x80131040: The located assembly's manifest definition does not match the assembly reference

The located assembly's manifest definition does not match the assembly reference getting this when running nunit through ncover. Any idea?..

How do I install a plugin for vim?

I'd like to try the plugin for Vim linked below. It adds syntax highlighting for .haml and (perhaps) .sass files. I did this... $ cd ~/.vim $ git clone git://github..

AngularJS : Custom filters and ng-repeat

I'm an AngularJS newbie and I'm building up a small proof-of-concept car hire listings app that pulls in some JSON and renders out various bits of that data via an ng-repeat, with a couple of filters:..

Get first word of string

Okay, here is my code with details of what I have tried to do: var str = "Hello m|sss sss|mmm ss"; //Now I separate them by "|" var str1 = str.split("|"); //Now I want to get the first word of every..

python re.split() to split by spaces, commas, and periods, but not in cases like 1,000 or 1.50

I want to use python re.split() to split a string into individual words by spaces, commas and periods. But I don't want "1,200" to be split into ["1", "200"] or ["1.2"] to be split into ["1", "2"]. E..

Program to find largest and second largest number in array

I have searched many websites for this question. They are doing it by some different approach. This code is just not giving output if I input first element of array as largest i.e. a[0]. I think some ..

Emulate/Simulate iOS in Linux

I'm developing a web app that apparently is having problems in iOS devices. The problem is that I don't own an iOS device and I develop in Linux Ubuntu. I'm looking for a way to emulate/simulate this ..

How to parse JSON with VBA without external libraries?

I have a json like below: {"sentences":[{"trans":"something ru","orig":"english word","translit":"Angliyskoye slovo","src_translit":""}], "src":"en","server_time":69} and parse it: Function jsonDe..

Is it possible to save HTML page as PDF using JavaScript or jquery?

Is it possible to save HTML page as PDF using JavaScript or jquery? In Detail: I generated one HTML Page which contains a table . It has one button 'save as PDF'. If user clicks that button then tha..

How to sort in mongoose?

I find no doc for the sort modifier. The only insight is in the unit tests: spec.lib.query.js#L12 writer.limit(5).sort(['test', 1]).group('name') But it doesn't work for me: Post.find().sort(['upd..

Equivalent of typedef in C#

Is there a typedef equivalent in C#, or someway to get some sort of similar behaviour? I've done some googling, but everywhere I look seems to be negative. Currently I have a situation similar to the ..

How to tell when UITableView has completed ReloadData?

I am trying to scroll to the bottom of a UITableView after it is done performing [self.tableView reloadData] I originally had [self.tableView reloadData] NSIndexPath* indexPath = [NSIndexPath ind..

ASP.Net MVC – Resource Cannot be found error

I am completely new to ASP.Net MVC. I just created an MVC3 project in Visual Studio 2010. The view engine is razor. When I just ran the application it gave the proper result in the browser. The URL i..

how to convert string into dictionary in python 3.*?

I want to convert the following string into dictionary without using eval() function in Python 3.5. d="{'Age': 7, 'Name': 'Manni'}"; Can anybody tell me the good way than using the eval() function?..

Inheritance and init method in Python

I'm begginer of python. I can't understand inheritance and __init__(). class Num: def __init__(self,num): self.n1 = num class Num2(Num): def show(self): print self.n1 mynumb..

Pass C# ASP.NET array to Javascript array

Does anyone know how to pass a C# ASP.NET array to a JavaScript array? Sample code will also be nice. Sorry if I was vague earlier guys. The question is actually quite simple. Let's say for simplicit..

How do you delete a column by name in data.table?

To get rid of a column named "foo" in a data.frame, I can do: df <- df[-grep('foo', colnames(df))] However, once df is converted to a data.table object, there is no way to just remove a column. ..

How do you create a read-only user in PostgreSQL?

I'd like to create a user in PostgreSQL that can only do SELECTs from a particular database. In MySQL the command would be: GRANT SELECT ON mydb.* TO 'xxx'@'%' IDENTIFIED BY 'yyy'; What is the equi..

Viewing contents of a .jar file

What would be the easiest way to view classes, methods, properties, etc. inside a jar file? I'm looking for something equivalent to the very useful Lutz Roeder .NET Reflector - for Java..

What does <meta http-equiv="X-UA-Compatible" content="IE=edge"> do?

What's the difference if one web page starts with <!DOCTYPE html> <html> <head> <meta http-equiv="X-UA-Compatible" content="IE=edge"> and If page starts with <..

Threads vs Processes in Linux

I've recently heard a few people say that in Linux, it is almost always better to use processes instead of threads, since Linux is very efficient in handling processes, and because there are so many p..

jquery background-color change on focus and blur

I have the following problem: I have a form with three text input fields, and I want to change the background-color when one of the fields has focus, and get it set back when it loses focus. I have co..

Don't change link color when a link is clicked

I have a link in an HTML page: <a href="#foo">foo</a> The color of the link text is originally blue. When the link is clicked, the color of the link text changes to Red first, and then ..

Google Maps setCenter()

I'm using google maps. In my code i've used setCenter() function. My problem is that marker is always located on top left corner of map area (not at the center). Please tell me how to resolve it? My ..

How to change UINavigationBar background color from the AppDelegate

I know how to change the UINavigationBar background image by doing [[UINavigationBar appearance] setBackgroundImage:[UIImage imageNamed:@"nabbar"] forBarMetrics:UIBarMetricsDefault]; and I know ho..

How to convert Double to int directly?

May be this is silly question. I want to get rid of the fractional part of the Double number. But I cant do that. It shows the error that incompatible types. What to do? Double to int conversion in o..

Can I call a constructor from another constructor (do constructor chaining) in C++?

As a C# developer I'm used to running through constructors: class Test { public Test() { DoSomething(); } public Test(int count) : this() { DoSomethingWithCount(count);..

strdup() - what does it do in C?

What is the purpose of the strdup() function in C?..

Logging levels - Logback - rule-of-thumb to assign log levels

I'm using logback in my current project. It offers six levels of logging: TRACE DEBUG INFO WARN ERROR OFF I'm looking for a rule of thumb to determine the log level for common activities...

How to remove the character at a given index from a string in C?

How do I remove a character from a string? If I have the string "abcdef" and I want to remove "b" how do I do that? Removing the first character is easy with this code: #include <stdio.h> #..

How to remove files and directories quickly via terminal (bash shell)

From terminal window: When I use the rm command it can only remove files. When I use the rmdir command it only removes empty folders. If I have a directory nested with files and folders within f..

base64 encode in MySQL

I want to select a blob col from one table, base64 encode it and insert it into another tables. Is there any way to do this without round tripping the data out of the DB and through my app?..

jQuery and TinyMCE: textarea value doesn't submit

I am using jQuery and TinyMCE to submit a form, but there is a problem in serialization in that the Textarea value doesn't post. Here is the code: <form id="myForm" method="post" action="post.php..

Regular expression for only characters a-z, A-Z

I don't know how to create a regular expression in JavaScript or jQuery. I want to create a regular expression that will check if a string contains only characters between a-z and A-Z with any arrang..

Where's my JSON data in my incoming Django request?

I'm trying to process incoming JSON/Ajax requests with Django/Python. request.is_ajax() is True on the request, but I have no idea where the payload is with the JSON data. request.POST.dir contains ..

How do I dynamically change the content in an iframe using jquery?

I was wondering if it is possible to have a site with an iframe and some jquery code that changes the iframe content every 30 seconds. The content is in different webpages. Something like this: <..

How to fix java.lang.UnsupportedClassVersionError: Unsupported major.minor version

I am trying to use Notepad++ as my all-in-one tool edit, run, compile, etc. I have JRE installed, and I have setup my path variable to the .../bin directory. When I run my "Hello world" in Notepad++..

How do I compile with -Xlint:unchecked?

I'm getting a message when I compile my code: Note: H:\Project2\ uses unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details. How do I recompile with -Xlint:un..

AngularJS ng-if with multiple conditions

I'd like to know if it's possible to have something like this: div ng-repeat="(k,v) in items" <div ng-if="k == 'a' || k == 'b'"> <!-- SOME CONTENT --> </div> Knowing that item..

How do I get logs/details of ansible-playbook module executions?

Say I execute the following. $ cat #!/bin/bash echo Hello World exit 0 $ cat Hello.yml --- - hosts: MyTestHost tasks: - name: Hello yourself script: $ ansible-playbook He..

Creating files and directories via Python

I'm having trouble creating a directory and then opening/creating/writing into a file in the specified directory. The reason seems unclear to me. I'm using os.mkdir() and path=chap_name print "Path ..

How do I round a float upwards to the nearest int in C#?

In C#, how do I round a float upwards to the nearest int? I see Math.Ceiling and Math.Round, but these returns a decimal. Do I use one of these then cast to an Int?..

Max value of Xmx and Xms in Eclipse?

Now my settings for these in the ini file are: -Xms768M -Xmx1024M When setting them higher, eclipse doesn't start anymore... Is there a way to increase these values without eclipse crashing?..

What is a Python equivalent of PHP's var_dump()?

When debugging in PHP, I frequently find it useful to simply stick a var_dump() in my code to show me what a variable is, what its value is, and the same for anything that it contains. What is a good..

Is it possible to make an HTML anchor tag not clickable/linkable using CSS?

For example if I have this: <a style="" href="page.html">page link</a> Is there anything I can use for the style attribute that will make it so the link isn't clickable and won't take me..

check if a std::vector contains a certain object?

Is there something in <algorithm> which allows you to check if a std:: container contains something? Or, a way to make one, for example: if(a.x == b.x && a.y == b.y) return true; retu..

Warnings Your Apk Is Using Permissions That Require A Privacy Policy: (android.permission.READ_PHONE_STATE)

In manifest not added android.permission.READ_PHONE_STATE. permission. Why error comes when I upload a new apk version error comes below. Your app has an apk with version code 1 that requests the foll..

End of File (EOF) in C

I am currently reading the book C Programming Language by Ritchie & Kernighan. And I am pretty confused about the usage of EOF in the getchar() function. First, I want to know why the value of E..

What are Maven goals and phases and what is their difference?

What is the difference/relation between Maven goals and phases? How they are related to each other?..

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 ..

Oracle date to string conversion

I have a string column COL1 when I am doing this SELECT TO_CHAR(TO_DATE(COL1,'dd-mon-yy'), 'mm/dd/yyyy') FROM TABLE1 The data in COL1 is in dd-mon-yy, eg: 27-11-89 and 89 is 1989 but the select ret..

How to push to History in React Router v4?

In the current version of React Router (v3) I can accept a server response and use browserHistory.push to go to the appropriate response page. However, this isn't available in v4, and I'm not sure wha..

join on multiple columns

I have two tables (Table A and Table B) which I want to join on multiple columns in both tables. Table A Col1 Col2 ================ A11 A..

Only allow Numbers in input Tag without Javascript

I am fairly new. I am creating a webpage that ask a user for their ID. I want it to be a required field and only allow numbers. I appreciate if you lead me in the correct direction. this is what I ha..

How do I solve this "Cannot read property 'appendChild' of null" error?

I tried to use this code below, which adds buttons in slideshow on my site: window.onload = function loadContIcons() { var elem = document.createElement("img"); elem.src = "http://arno.agnian..

How to replace multiple strings in a file using PowerShell

I am writing a script for customising a configuration file. I want to replace multiple instances of strings within this file, and I tried using PowerShell to do the job. It works fine for a single re..

Is it correct to use DIV inside FORM?

I'm just wondering what are you thinking about DIV-tag inside FORM-tag? I need something like this: <form> <input type="text"/> <div> some </div> <div> another &l..

How to prevent favicon.ico requests?

I don't have a favicon.ico, but my browser always makes a request for it. Is it possible to prevent the browser from making a request for the favicon from my site? Maybe some META-TAG in the HTML head..

Fatal error: Class 'SoapClient' not found

I'm trying a simple web service example and I get this error even though I uncommented extension=php_soap.dll in the php.ini file: Fatal error: Class 'SoapClient' not found in C:\Program Files (x8..

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 potential..

Using Jquery Datatable with AngularJs

I'm trying to use the jquery datatable plugin in my angularjs project. but my question is does it support lazy loading of value for angularjs? i want beacuse i have many row. how to use datatable pip..

Sorting a List<int>

Using C# what is the best way to sort a List numerically? my list has items 5,7,3 and I would like them sorted 3,5,7. I know some longer ways, but I would imagine linq has a quicker way? sorry this ..

Sql query to insert datetime in SQL Server

I want to insert a datetime value into a table(SQL Server) using the sql query below insert into table1(approvaldate)values(18-06-12 10:34:09 AM); But I get this Error msg. Incorrect syntax near '1..

Useful example of a shutdown hook in Java?

I'm trying to make sure my Java application takes reasonable steps to be robust, and part of that involves shutting down gracefully. I am reading about shutdown hooks and I don't actually get how to m..

JAVA_HOME should point to a JDK not a JRE

I am trying to set up maven for my project and I am getting this error "JAVA_HOME should point to a JDK not a JRE" I know there are already similar question but it did not work. How can I point J..

exclude @Component from @ComponentScan

I have a component that I want to exclude from a @ComponentScan in a particular @Configuration: @Component("foo") class Foo { ... } Otherwise, it seems to clash with some other class in my project...

How do I enable the column selection mode in Eclipse?

News wrote that Eclipse 3.5 finally supports column selection. Unfortunately I don't know HOW to enable it. I tried pressing the ALT-key like I am used to in Visual Studio and all other Microsoft pro..

How can I list all foreign keys referencing a given table in SQL Server?

I need to remove a highly referenced table in a SQL Server database. How can I get a list of all the foreign key constraints I will need to remove in order to drop the table? (SQL answers preferable..

How to set up googleTest as a shared library on Linux

Debian does not provide any precompiled packages for gTest anymore. They suggest you integrate the framework into your project's makefile. But I want to keep my makefile clean. How do I set up gTest l..

Distinct in Linq based on only one field of the table

I am trying to use .distinct in Linq to get result based on one field of the table (so do not require a whole duplicated records from table). I know writing basic query using distinct as followed: v..

Scp command syntax for copying a folder from local machine to a remote server

I am using putty for copying files from local machine to remote server.My folder is in C:/site can any one give syntax for copying folder from C:/site to remote server using scp..

How to debug SSL handshake using cURL?

I would like to troubleshoot per directory authentication with client certificate. I would specially like to find out which acceptable client certificates does server send. How do I debug SSL handsha..

creating triggers for After Insert, After Update and After Delete in SQL

I am trying to create a trigger each time after data is inserted, updated or deleted. The trigger for inserting is working fine but i am having some issues with the Update and Delete. Here is After ..

How can I generate a list or array of sequential integers in Java?

Is there a short and sweet way to generate a List<Integer>, or perhaps an Integer[] or int[], with sequential values from some start value to an end value? That is, something shorter than, but..

Angularjs autocomplete from $http

I'm trying to write an autocomplete directive that fetches data from the server using an $http request (without using any external plugins or scripts). Currently it works only with static data. Now, I..

What's the difference between ng-model and ng-bind

I'm currently learning AngularJS and am having difficulty understanding the difference between ng-bind and ng-model. Can anyone tell me how they differ and when one should be used over the other?..

Uncaught SyntaxError: Unexpected end of JSON input at JSON.parse (<anonymous>)

I need some help with this error : Uncaught SyntaxError: Unexpected end of JSON input at JSON.parse () at Object.success (dashboard.js:22) at fire (jquery-3.3.1.js:3268) at..

Checking if a double (or float) is NaN in C++

Is there an isnan() function? PS.: I'm in MinGW (if that makes a difference). I had this solved by using isnan() from <math.h>, which doesn't exist in <cmath>, which I was #includeing at..

What is the maximum size of a web browser's cookie's key?

What is the maximum size of a web browser's cookie's key? I know the maximum size of a cookie is 4KB, but does the key have a limitation as well?..

make arrayList.toArray() return more specific types

So, normally ArrayList.toArray() would return a type of Object[]....but supposed it's an Arraylist of object Custom, how do I make toArray() to return a type of Custom[] rather than Object[]?..

maven error: package org.junit does not exist

I'm trying to create the javadoc with maven and it fails. It also fails when doing the verify. mvn verify I get the following error: (...) [INFO] ----------------------------------------------..

How to handle notification when app in background in Firebase

Here is my manifest <service android:name=".fcm.PshycoFirebaseMessagingServices"> <intent-filter> <action android:name="" /&g..

Get hours difference between two dates in Moment Js

I'm able to get the difference between two dates using MomentJs as follows: moment(end.diff(startTime)).format("m[m] s[s]") However, I also want to display the hour when applicable (only when >= 60..

Getting file names without extensions

When getting file names in a certain folder: DirectoryInfo di = new DirectoryInfo(currentDirName); FileInfo[] smFiles = di.GetFiles("*.txt"); foreach (FileInfo fi in smFiles) { builder.Append(fi...

Uri content://media/external/file doesn't exist for some devices

I have an issue with some devices. I cannot replicate it on any device but I have quite a lot of crash reports reported by some users. It is this exception: java.lang.IllegalArgumentException: Unkno..

How to give a time delay of less than one second in excel vba?

i want to repeat an event after a certain duration that is less than 1 second. I tried using the following code Application.wait Now + TimeValue ("00:00:01") But here the minimum delay time is one ..

How to return a class object by reference in C++?

I have a class called Object which stores some data. I would like to return it by reference using a function like this: Object& return_Object(); Then, in my code, I would call it like this..

Re-ordering factor levels in data frame

I have a data.frame as shown below: task measure right m1 left m2 up m3 down m4 front m5 back m6 . . . The task column takes only six different values, which are treated as fac..

How to restart a node.js server

I've installed and is running a node.js server on osx. I've dled a chat module and is happily running it. I've altered some pieces and need to restart the server to see the effects. I only know how t..

Skipping Iterations in Python

I have a loop going, but there is the possibility for exceptions to be raised inside the loop. This of course would stop my program all together. To prevent that I catch the exceptions and handle them..

Prevent flex items from stretching

Sample: _x000D_ _x000D_ div {_x000D_ display: flex;_x000D_ height: 200px;_x000D_ background: tan;_x000D_ }_x000D_ span {_x000D_ background: red;_x000D_ }_x000D_ <div>_x000D_ <span&g..

android.widget.Switch - on/off event listener?

I would like to implement a switch button, android.widget.Switch (available from API v.14). <Switch android:id="@+id/switch1" android:layout_width="wrap_content" android:layout_height=..

Index of Currently Selected Row in DataGridView

It's that simple. How do I get the index of the currently selected Row of a DataGridView? I don't want the Row object, I want the index (0 .. n)...

Sticky Header after scrolling down

I saw this sticky header on this website: (no longer active, view archived site) When you scroll down the sticky header comes down from the top. I looked at the code, but it looks..

PHP: check if any posted vars are empty - form: all fields required

Is there a simpler function to something like this: if (isset($_POST['Submit'])) { if ($_POST['login'] == "" || $_POST['password'] == "" || $_POST['confirm'] == "" || $_POST['name'] == "" || $_PO..

Checking if a field contains a string

I'm looking for an operator, which allows me to check, if the value of a field contains a certain string. Something like: db.users.findOne({$contains:{"username":"son"}}) Is that possible? ..

Codeigniter: Passing data from controller to view

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